Choose words that fit your meaning and audience. Each entry explains an alternative and a common usage trap, then links to a complete lesson. These expressions are learning examples, not a list of words required for a particular score.
By MockMaple · Updated September 29, 2026 · AI-authored teaching material; independent human teaching review not yet verified.
Each topic includes eight expressions, a complete conversation, meaning contrasts and practice questions.
Practise eight workplace expressions with meaning contrasts, a complete conversation and usage checks.
Learn eight expressions for describing a repair problem, arranging access and following up politely.
Practise appointment language, time expressions and polite clarification in a fictional clinic conversation.
Compare eight travel expressions in a conversation about a delay and a possible alternative route.
Use eight study expressions accurately, including enrol, prerequisite, assignment and catch up.
Compare eight expressions for neighbourhood proposals, shared responsibilities and qualified support.
Make a meaning or instruction easier to understand.
Ask your supervisor to clarify the final step.
Compare: Confirm checks whether an understanding is correct; clarify asks for greater clarity.
Usage: Clarify the instructions, not clarify about the instructions.
Use it in context: CELPIP Speaking Task 1: advice for a new jobLikely, but not certain.
The man will probably move the boxes inside.
Compare: Might expresses possibility without the same confidence as probably.
Usage: Do not replace probably with definitely unless the evidence supports certainty.
Use it in context: CELPIP Speaking Task 4: predictions with evidenceWith little time to prepare for a change.
I am sorry to cancel at short notice.
Compare: Unexpectedly describes surprise; at short notice emphasizes limited preparation time.
Usage: This phrase does not explain the reason for the change; give that separately.
Use it in context: CELPIP Speaking Task 6: change a promise tactfullyAccept a duty to manage something or its consequences.
A volunteer could take responsibility for checking returns.
Compare: Be responsible for describes the duty; take responsibility for emphasizes accepting it.
Usage: Use for followed by a noun or an -ing form: responsible for checking.
Use it in context: CELPIP Speaking Task 7: an opinion with a practical exampleTemporarily do another person’s work.
Another volunteer covered for me during setup.
Compare: Help someone is broader; cover for someone means taking over their responsibilities temporarily.
Usage: In another context, cover for can mean hiding someone’s mistake; make the work context clear.
Use it in context: CELPIP Speaking Task 2: a journey that went wrongAssume control of a task someone else was doing.
My aunt explained the technique without taking over.
Compare: Help allows the original person to remain involved; take over means assuming control.
Usage: Take over a task or take over from a person; do not write take over to someone.
Use it in context: CELPIP Speaking Task 2: learning a practical skillWith little time to prepare.
Changing the arrangement at short notice would be difficult.
Compare: Unexpectedly describes surprise; at short notice describes limited preparation time.
Usage: Use at short notice or on short notice; avoid in short notice.
Use it in context: CELPIP Speaking Task 6: declining a shift requestOn the condition that.
I support the rule provided that urgent calls are allowed.
Compare: Although introduces contrast; provided that introduces a condition.
Usage: Do not substitute although if you mean that your support depends on a condition.
Use it in context: CELPIP Speaking Task 7: phone-free meetingsOn the condition that.
An online class would work, provided learners could ask questions.
Compare: As long as expresses a similar condition in a more conversational way.
Usage: Provided introduces a condition here; it does not mean that someone supplied something.
Use it in context: CELPIP email example: request a replacement classA benefit gained while accepting a disadvantage.
The tradeoff is fewer opportunities to socialize.
Compare: Drawback names the disadvantage alone; tradeoff describes the competing considerations.
Usage: Do not use tradeoff as a synonym for a problem with no corresponding benefit.
Use it in context: CELPIP survey example: choose a quiet break roomInterrupting an activity or normal routine.
The late-night music is disruptive.
Compare: Loud describes volume; disruptive describes its effect.
Usage: Describe the behaviour as disruptive rather than attacking a person.
Use it in context: CELPIP complaint email example: a noisy apartmentA courteous way to introduce something you would value.
I would appreciate an update by Friday.
Compare: Please send an update is more direct, while still potentially polite.
Usage: Use a noun or an -ing form after appreciate: appreciate receiving an update.
Use it in context: CELPIP complaint email example: a noisy apartmentGive something greater importance or earlier attention.
I would prioritize Sunday opening.
Compare: Prefer expresses a liking; prioritize identifies what should come first.
Usage: Prioritize does not mean the other option has no value.
Use it in context: CELPIP survey example: weekend library hoursAfter considering benefits and drawbacks.
On balance, Sunday opening offers the more useful addition.
Compare: Overall gives a general assessment; on balance emphasizes weighing considerations.
Usage: Use it after developing reasons, not as a substitute for them.
Use it in context: CELPIP survey example: weekend library hoursA period during which a delivery is expected.
Please confirm a two-hour delivery window.
Compare: Deadline is the latest acceptable time; a window is a span of time.
Usage: Use within the delivery window or during the delivery window, not at a delivery window when referring to time.
Use it in context: CELPIP Writing Task 1: email about a delayed deliveryEnough for a particular purpose.
Would a phone camera be sufficient for the course?
Compare: Suitable means appropriate; sufficient means enough to meet a requirement.
Usage: State the purpose: sufficient for the course, not sufficient to the course.
Use it in context: CELPIP Writing Task 1: requesting course informationHelp someone feel accepted and comfortable.
The volunteers made newcomers feel welcome.
Compare: Greet describes the initial greeting; make someone feel welcome describes the broader effect.
Usage: Use welcome as an adjective here: feel welcome, not feel welcomedness.
Use it in context: CELPIP Writing Task 1: thanking a volunteer organiserTreat something as more important in a decision.
I would give priority to evening service.
Compare: Prefer states a choice; give priority to also suggests an order for allocating attention or resources.
Usage: Use priority over another option or priority to a need; avoid priority than.
Use it in context: CELPIP Writing Task 2: evening buses or new sheltersBe relevant to a situation; also, in a different construction, submit a request to an organisation.
The procedure applies to customer returns.
Compare: Use a procedure means perform it; a procedure applies to a case means it is relevant to that case.
Usage: Distinguish apply a rule to a case from apply to a company for a job.
Use it in context: CELPIP Writing Task 2: live workshops or recorded trainingA promise or willingness to give time and effort.
The garden needs a continuing commitment from volunteers.
Compare: Interest means wanting to know or participate; commitment implies a stronger undertaking.
Usage: Commitment to maintaining uses to plus an -ing form; avoid commitment for maintain.
Use it in context: CELPIP Writing Task 2: a community garden or sports courtAn arrangement or responsibility you have agreed to.
You may leave if you have another commitment.
Compare: Appointment usually refers to a scheduled meeting; commitment can include other duties.
Usage: Here commitment is a responsibility, not simply enthusiasm.
Use it in context: CELPIP Reading practice: a workshop change explainedState that an arrangement or fact is correct or definite.
You do not need to confirm your attendance again.
Compare: Cancel means withdraw from an arrangement, not confirm it.
Usage: Notice the negative: no further confirmation is requested.
Use it in context: CELPIP Reading practice: a workshop change explainedOnly if the stated condition is met.
Owen could support the plan provided that access improves.
Compare: Although introduces a contrast; provided that introduces a condition.
Usage: Changing the connector can change the writer’s position.
Use it in context: CELPIP Reading practice: compare two street-closure viewpointsIn agreement or sharing an understanding.
The writers are not yet on the same page about access arrangements.
Compare: Agree is a plainer alternative.
Usage: This conversational idiom should not replace a precise explanation of their disagreement.
Use it in context: CELPIP Reading practice: compare two street-closure viewpointsMake a reserved or held appointment available to someone else.
We will release the appointment if you do not confirm.
Compare: Reschedule moves an appointment; release removes the hold on that slot.
Usage: The object matters: release a report means publish it, not cancel it.
Use it in context: CELPIP-style Reading: a repair appointment emailThe date by which something must be returned or completed.
Request a renewal before the due date.
Compare: Pickup deadline is the latest collection time; due date here concerns returning a borrowed item.
Usage: A due date is not the date on which you first borrowed the item.
Use it in context: CELPIP-style Reading: library borrowing rulesA limited test of an idea before a wider commitment.
The market could run as a six-week trial.
Compare: Pilot is often a small initial programme; permanent arrangement has no planned trial end.
Usage: Trial can also refer to a legal proceeding; the surrounding context determines the meaning.
Use it in context: CELPIP-style Reading: two views on a street marketThe times when a person can participate or work.
Shift assignments depend on everyone’s availability.
Compare: Ability concerns what you can do; availability concerns whether or when you can take part.
Usage: State availability for shifts or availability on weekdays; it does not mean skill level.
Use it in context: CELPIP-style Reading: volunteer orientation instructionsReach the end of a period of validity.
The access code expires after three days.
Compare: Close usually describes a place or service stopping operation; expire describes validity ending.
Usage: A code expires; the sentence does not say your library membership expires.
Use it in context: CELPIP Listening practice: library pickup lockersExtra time added to an existing period.
Call to ask for an extension.
Compare: Renewal starts or continues a period under its own rules; do not assume it is automatic here.
Usage: May be able to is not a promise that staff will grant the request.
Use it in context: CELPIP Listening practice: library pickup lockersAssign a resource to a person or purpose.
Beds will be allocated by a draw.
Compare: Distribute can describe handing things out; allocate emphasizes deciding who receives a resource.
Usage: The allocation method is a draw, not first come, first served.
Use it in context: CELPIP Listening practice: community garden newsStill undecided or uncertain.
The workshop schedule is still up in the air.
Compare: Unconfirmed is a more neutral alternative for a formal report.
Usage: This conversational idiom would overstate uncertainty if used for the already approved funding.
Use it in context: CELPIP Listening practice: community garden news