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Release Day: Rolling Out and Rolling Back – phrasal verbs and their nouns, from roll out to a rollout

Phrasal verbs and their noun forms are the focus of this C1 English for IT lesson plan on release day: roll out and a rollout.

Grammar
Separable, inseparable and three-part phrasal verbs, where the pronoun goes (roll it out, sign off on it), their nouns (a rollout, a sign-off) and formal equivalents.
Topic
A staged release behind a feature flag at a fictional payments startup, with words such as canary release, blast radius and kill switch.
Activities
A release plan to read, a call to hear as errors spike, self-checking drills, a Slack chat and a role-play wheel, then a release announcement to write and a go/no-go call to record.

What's inside

  1. Chapter 1Warm-up: Ship It or Hold Off?

    • PictureUnlock
    • Open a box and discussOpen the boxUnlock
    • Study the release-day vocabularyVocabularyTry it
    • Match the terms to the situationsMatchUnlock

  2. Chapter 2Reading: The Release Plan

    • Read the release planReal-life documentTry it
    • True or false? Check the release planTrue or falseUnlock
    • Choose the correct answer: the release planQuizUnlock

  3. Chapter 3Listening: Ten Percent and Climbing

    • Listen to Sofia and Tom during the rolloutListeningTry it
    • Transcript, for the teacherUnlock
    • Choose the correct answer: what happened at 10%?QuizUnlock

  4. Chapter 4Grammar: Roll It Out, Roll It Back

    • Study the scheme: phrasal verbs on release dayGrammar schemeTry it
    • Choose the correct word orderChoose the optionUnlock
    • Fill in the gaps: put the phrasal verbs in the pastFill in the gapsUnlock
    • Drag the words into the gaps: verb or noun?Drag and dropTry it
    • Fill in the table: pronouns and noun formsFill in the tableUnlock
    • Choose the correct answer: what do they mean?QuizUnlock

  5. Chapter 5Speaking: Can We Just Push It to 100%?

    • Choose the most professional repliesChatTry it
    • Spin the wheel and role-playSpin the wheelUnlock

  6. Chapter 6Homework: The Second Rollout

    • Choose the right phrasal verbChoose the optionUnlock
    • Find the matching pairs: phrasal verbs and formal verbsMemory gameUnlock
    • Write a release announcement for #releasesWriting, checked by the teacherUnlock
    • Record a go/no-go callSpeaking, checked by the teacherUnlock

22 exercises in 6 chapters. Start a 7-day free trial to open all of them, copy any part into your own lessons, and teach the lesson live.

Vocabulary

10 words and phrases from the lesson, each with a picture and audio in edio.

+7 more with pictures and audio in the lessonMore words

  • error rate
  • go/no-go decision
  • kill switch
  • hotfix
  • regression
  • smoke test
  • threshold

Grammar: phrasal verbs and their noun forms

In technical English, release day runs on phrasal verbs: teams roll changes out, roll them back and sign off on the next stage. At C1 the challenge is the system behind them: where the object goes and which noun each verb makes. The scheme sorts the lesson's verbs into three patterns, then gives their nouns and formal one-word partners.

Phrasal verbs on release day

Where does the object go, and when is it one word? Three patterns and a spelling rule.

Three patterns: separable, inseparable, three-part

Separable verbs join a verb and a particle that can move: roll out, spin up, tear down. Inseparable ones join a verb and a preposition (look into, run into), and three-part verbs keep the object after all three words: sign off on it.

PatternVerbs in this lessonWith a pronoun
Separable: verb + particleroll out, roll back, spin up, tear down, kick off, wind down, scale up, phase out, carry over, figure outroll it out ✓ · roll out it ✗
Inseparable: verb + prepositionlook into, run intolook into it ✓ · look it into ✗
Three-part: the object goes after all threesign off on, hold off on, back out of, fall back onsign off on it ✓ · sign it off on ✗

Where the object goes

With a separable verb, a noun object can sit in the middle or at the end (We rolled the dashboard out. We rolled out the dashboard.), and a long one goes last. A pronoun always goes in the middle: We rolled it out, never rolled out it.

A noun: either place

  • We rolled out the dashboard. ✓
  • We rolled the dashboard out. ✓
  • Long object? Put it last: roll out the new merchant dashboard.

A pronoun: in the middle

  • We rolled it out. ✓
  • We rolled out it. ✗
  • Old test environments? Tear them down.

No object: verb + particle

  • Stage 2 kicked off at 10:30.
  • Errors spiked, so we rolled back.
  • The old service is winding down.

Verb or noun: one word or a hyphen

The verb has two or three words, and the noun closes up into one word or takes a hyphen: roll out, a rollout; fall back on, a fallback; sign off on, a sign-off. British English often writes roll-out. Tenses change only the verb: ran into, held off on.

Verb or noun?

Verb: two or three wordsNoun: one word or a hyphenIn a sentence
roll outa rolloutThe rollout starts at 9:00.
roll backa rollbackThe rollback took less than a minute.
kick offa kickoffSee you at the kickoff call.
tear downa teardownThe test cluster's teardown took ten minutes.
fall back ona fallbackThe old dashboard is our fallback.
sign off ona sign-offWe need Daniel's sign-off.

Spelling and tenses

To roll out (verb) is two words; a rollout (noun) is one. British English often writes roll-out and kick-off. Tenses change only the verb, never the particle: ran into, spun up, held off on.

Phrasal verb or formal verb?

Most of these verbs have a one-word partner: look into, investigate; hold off on, postpone; roll back, revert. Phrasal verbs sound natural in Slack, stand-ups and calls, while a formal report often prefers the one-word verb: Stage 3 was postponed.

What they mean

Phrasal verbMeaningMore formal
roll out · roll backrelease, often step by step · return to the previous versionrelease, deploy · revert
spin up · tear downcreate · remove (a server, an environment)provision · decommission
kick off · wind downstart · reduce slowly, then stopbegin · –
scale upadd capacityexpand
phase outstop using something graduallydiscontinue
carry overmove to the next sprint or period–
figure outunderstand, solvedetermine
look intoexamine the facts about somethinginvestigate
run intomeet (a problem) unexpectedlyencounter
sign off ongive the official OKapprove
hold off onwait before doing somethingpostpone
back out ofleave a plan or deal you agreed towithdraw from
fall back onuse as a backup when plan A failsrely on

Slack or formal report?

In Slack, stand-ups and calls, phrasal verbs sound natural: Let's hold off on stage 3. In a formal report or policy, a one-word verb often fits better: Stage 3 was postponed. Both are correct; choose by register.

Typical mistakes

  • We'll rollout the fix at 9:00.

    We'll roll out the fix at 9:00.

    The verb is two words; rollout is the noun.

  • The roll back was quick.

    The rollback was quick.

    The noun is one word.

  • Errors spiked, so we rolled back it.

    Errors spiked, so we rolled it back.

    A pronoun goes between the verb and the particle.

  • Tom is looking in the Safari errors.

    Tom is looking into the Safari errors.

    look into = investigate; look in = look inside.

More lessons on this grammar: Phrasal verbs lessons and exercises

Try the phrasal verbs and nouns exercises

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What's in the lesson

  • 11 auto-checked exercises
  • 3 games
  • 2 teacher-checked tasks
  • 1 real-life document
  • 1 grammar scheme
  • 1 set of word cards
  • 1 audio clip
  • 1 picture
  • 1 transcript

The main objectives of this lesson are to:

  • put the pronoun in the right place: roll it out, look into it, sign off on it, never roll out it
  • turn a phrasal verb into its noun: We'll roll out the fix. The rollout starts at 9:00.
  • switch register: Let's hold off on stage 3 in Slack, Stage 3 was postponed in a report
  • announce a rollback to the team and push back when a manager wants to skip stages: I'd rather not skip stages.

Lesson 5 of English for IT C1 · Across the Company sits in unit 2, Shipping and incidents, which trains the language of estimates, releases and outages. It takes the separable verbs of Turn it on, turn it off (English A2.2, lesson 7) up to C1, with three-part verbs, noun forms and register; lesson 6 then moves on to incident reviews and modal perfects. A release plan is where the verbs and their nouns sit side by side: look into it later, Daniel's sign-off.

Students discuss release-day questions from open boxes, then learn ten words such as feature flag, smoke test and go/no-go decision with pictures and audio, and match them to situations. The reading is the release plan for a new merchant dashboard: a 1% canary, then 10%, 50% and 100%, with go/no-go criteria, a rollback rule and a cleanup. In the AI-voiced listening, Sofia and Tom watch errors spike for Safari users at 10% and roll the change back. Five drills that check themselves follow the scheme, among them a table of pronoun positions and noun forms. In the speaking chapter, students answer Daniel, a product manager, in a Slack thread and spin a wheel of role-plays.

Homework begins with a gap-fill of phrasal verbs and a memory match of phrasal and formal verbs, both self-checking. Students then write a release announcement for the team's channel and record a go/no-go call, two tasks the teacher reviews.

Grammar:
phrasal verbs · separable and inseparable phrasal verbs · noun forms of phrasal verbs
Topic:
software releases · feature flags · staged rollout

Teaching tips

  • Run the go/no-go call in class: one student reads a stage's criteria from the release plan, the group decides, and every decision needs a phrasal verb, such as Let's hold off on stage 3.
  • Collect the team's own release verbs: in-company groups list the phrasal verbs they use in Slack, then sort them into the scheme's three patterns and add a noun where one exists.
  • Drill the pronoun with quick swaps: say Roll out the fix, and students answer Roll it out; say Look into the errors, and they answer Look into them.
  • With a one-to-one client, change the register: take a recent status message of theirs, swap each phrasal verb for its one-word partner, and discuss which version suits which reader.

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The whole course: English for IT C1 · Across the Company

15 lessons at C1 for people who build software, in American English, with definitions instead of translations. The people of Kestrel Cloud, a fictional payments startup, write updates, reviews, RFCs and postmortems, explain tech to non-tech colleagues and negotiate scope. Real cases include the CrowdStrike outage and the xz backdoor.See the course

  1. Unit 1 Talking to the team

    async updates, code review and plain explanations: the future perfect, hedging, cleft sentences

    1. Lesson 1Async Stand-ups: Status Updates People Can Act OnFuture forms for status updates
    2. Lesson 2Code Review Without the DramaHedging in code review
    3. Lesson 3Explaining Tech to Non-Tech PeopleIt-clefts and wh-clefts

  2. Unit 2 Shipping and incidents

    estimates, releases and outages: conditionals without if, phrasal verbs, modal perfects

    1. Lesson 4Estimates, Deadlines and Saying No (Politely)Conditionals without if and mixed conditionals
    2. Lesson 5 · you're hereRelease Day: Rolling Out and Rolling BackPhrasal verbs and their noun forms
    3. Lesson 6Incident! Learning from the CrowdStrike OutageModal perfects and narrative tenses

  3. Unit 3 Security and design

    advisories, trade-offs and RFCs: passive reporting structures, concession and contrast, nominalization

    1. Lesson 7Security Advisory: The xz BackdoorPassive reporting structures
    2. Lesson 8System Design: Every Choice Has a CostConcession, contrast and modified comparatives
    3. Lesson 9Writing an RFC That Gets ApprovedNominalization and formal register

  4. Unit 4 Docs, metrics and meetings

    READMEs, dashboards and follow-ups: participle clauses, describing trends, reporting verbs

    1. Lesson 10Docs People Actually ReadReduced relative clauses and participle clauses
    2. Lesson 11Metrics, Dashboards and SLOsPrepositions with numbers, trends and approximation
    3. Lesson 12Meeting Notes and Follow-upsReporting verbs and their patterns

  5. Unit 5 Retros, interviews and AI

    looking back and ahead: wish and would rather, inversion, formal obligation and permission

    1. Lesson 13The Retro: What Went Wrong This QuarterWish, would rather and it's high time
    2. Lesson 14The Interview: Selling Your AchievementsInversion for emphasis
    3. Lesson 15AI at Work: Writing the Team's RulesObligation and permission in formal rules

Questions about this lesson

How do you know if a phrasal verb is separable or inseparable?
A phrasal verb is separable when its particle can move around the object: roll out the fix or roll the fix out. In an inseparable verb, a preposition stays before its object, so a pronoun shows the difference: roll it out, but look into it, never look it into. The scheme in Release Day: Rolling Out and Rolling Back, a C1 lesson on edio.ai, sorts ten separable verbs, two inseparable ones and four three-part ones.
What are inseparable phrasal verbs?
Inseparable phrasal verbs are verbs whose object always follows the whole verb, even when it's a pronoun: look into it, run into it. Three-part verbs behave the same way: sign off on the timeline, hold off on stage three. So it's sign off on it, not sign it off on, which is a wrong reply in the Slack chat of Release Day: Rolling Out and Rolling Back, a C1 lesson on edio.ai.
How do you make a noun from a phrasal verb?
Join the verb and its particle into one word, or use a hyphen where the dictionary does: roll out gives a rollout, kick off gives a kickoff, tear down gives a teardown, sign off on gives a sign-off. Nouns from three-part verbs drop the last word: fall back on, a fallback. Not every verb has a noun; for look into, a report uses an investigation.
Is it "rollout" or "roll out"?
Roll out is the verb and rollout the noun: We'll roll out the fix at 9:00, but The rollout starts at 9:00. If you could put it in the middle (roll it out), write two words, so We'll rollout the fix is wrong. British English often hyphenates the noun, roll-out. The drag-and-drop on this page sorts the pair, along with kickoff and kick off.
Is it "rollback" or "roll back"?
Both are right, in different jobs: the noun rollback is one word, and the verb roll back is two. The rollback took less than a minute. Errors spiked, so we rolled back. With a pronoun object, the pronoun goes in the middle: we rolled it back, not we rolled back it. In a formal incident report, revert often replaces the verb: The change was reverted.
What is a feature flag?
A feature flag is a switch that turns new code on or off, so code can reach production before users see it. Engineers put a change behind a feature flag, turn the flag on for 1% of users, then more, and turn it off as a kill switch: Rollback = turn the flag off. On edio.ai, the release plan in the C1 lesson Release Day: Rolling Out and Rolling Back keeps a new dashboard behind one.
What is a canary release?
A canary release is an early launch to a tiny group of users, watched closely before anyone else gets the change. If the numbers stay below the threshold, the rollout widens step by step; if they don't, the team rolls back. Engineers talk about the canary stage or a canary group: Stage 1 is the canary, at 1% of merchants. The first stage of the release plan on this page is a canary.
Are phrasal verbs too informal for work?
No: phrasal verbs are natural in Slack, stand-ups and calls, though a formal report or policy often takes a one-word verb. In Slack: Let's hold off on stage 3. In the report: Stage 3 was postponed. Both are correct, so choose by reader and register. Useful pairs are look into and investigate, sign off on and approve, run into and encounter, and phase out and discontinue.
How do you announce a rollback to your team?
Say what happened, what you did and what comes next: At 10%, we ran into a bug that only hit merchants on Safari, so we rolled the change back within minutes. Then the plan: Tomorrow we'll roll the fix out to 1%, then 10%. Close with any decision you need: Could you sign off on the new timeline? A chat in Release Day: Rolling Out and Rolling Back on edio.ai rehearses these lines.
How do I teach phrasal verbs to C1 learners?
Teach them as a system tied to real work: the three patterns, where a pronoun goes, the noun forms and the formal partners. A release day suits IT learners, since one plan needs roll out, roll back, hold off on and sign off on. Finish with register: Let's hold off on it in chat, postponed in a report. Then have learners write a real message with six of the verbs.
What's good homework for practicing phrasal verbs at work?
Good homework puts the verbs into a message colleagues would actually read, such as a release announcement that must include we rolled it back and a noun like the rollout. In Release Day: Rolling Out and Rolling Back on edio.ai, a gap-fill and a memory match of phrasal and formal verbs check themselves, and the teacher reviews the announcement for the #releases channel and a recorded go/no-go call.
Are there interactive exercises for phrasal verbs and their nouns?
Yes: drag-and-drop gap-fills and chats that check every answer show whether a learner needs the verb or the noun. Without an account, this page plays four parts of Release Day: Rolling Out and Rolling Back, a C1 lesson on edio.ai: the staged release plan, Sofia and Tom's call as Safari errors spike, a drag-and-drop of pairs such as kick off and kickoff, and a Slack chat with Daniel about the rollback. The other exercises are locked.
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