Grammar

How English Tenses Work — The Big Map

Stop memorising rules in isolation. See the whole tense system as a simple grid of TIME (past/present/future) and ASPECT (simple/continuous/perfect).

6 min read · Updated June 18, 2026 · By the Celpip.me editorial team · Free
Quick answer
Updated Sep 16, 2026

English tenses form a 3x3 grid: three times (past, present, future) crossed with three aspects (simple, continuous, perfect), giving 9 core tense combinations. Simple states a complete fact or habit, continuous shows an action in progress, and perfect looks back from a later point. Pick one time frame before writing or speaking and keep verbs consistent throughout — CELPIP raters score tense control directly.

What's the difference between simple and continuous aspect?
Simple describes a complete fact or habit, like "She visited Paris last year," while continuous (be + -ing) shows an action in progress or temporary, like "He was sleeping when I called."
What does the perfect aspect mean?
Perfect (have + past participle) looks back from a point in time to something earlier, as in "I have finished" or "By 6pm I had left."
Why does tense consistency matter on the CELPIP test?
Raters in Writing and Speaking notice tense control directly, and an accidental shift — like switching from past to present mid-sentence — is a frequent, costly error, so decide your time frame first (past for Speaking Task 2, future for Task 4) and stay in it.
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Key strategies
  • 1.Every English tense is just a combination of TIME (past, present, future) and ASPECT (simple, continuous, perfect).
  • 2.Simple = a complete fact or habit. Continuous = in progress / temporary. Perfect = looking back from a later point.
  • 3.In CELPIP, control of tenses is scored directly in Writing and Speaking — shifting tense by accident is a common, costly error.
  • 4.Pick your main "time frame" first (am I narrating the past? describing now? predicting?), then stay in it consistently.

The whole system on one grid

English has only three times — past, present, future — and three aspects — simple, continuous, perfect (plus perfect continuous). Every tense you will ever use is one box in this grid:

SimpleContinuousPerfect
PastI workedI was workingI had worked
PresentI workI am workingI have worked
FutureI will workI will be workingI will have worked

If you understand what each aspect means, you can build any tense.

What each aspect means

  • Simple — a complete fact, a habit, or a finished action: "I work in a bank." "She visited Paris last year."
  • Continuous (be + -ing) — an action in progress or temporary: "I am working right now." "He was sleeping when I called."
  • Perfect (have + past participle) — looking back from a point in time to something earlier: "I have finished." "By 6pm I had left."

Why this matters for CELPIP

In Writing and Speaking, raters notice tense control. A frequent error is an accidental shift:

"Yesterday I go to the store and I am buying milk.""Yesterday I went to the store and bought some milk."

Decide your time frame before you start — narrating a past experience (Speaking Task 2)? Stay in the past. Predicting (Task 4)? Stay in the future. Then keep your verbs consistent.

How to use the rest of this course

The next lessons take each box of the grid in turn — present, past, future, then the trickier perfect forms — always with how it shows up on the test.

Check yourself

A quick self-check on this lesson — pick an answer, then see the explanation. Not graded.

1. Which aspect shows an action IN PROGRESS?
2. Choose the correctly consistent sentence:
3. "I have finished my report." Which aspect is this?
4. For narrating a personal experience in Speaking Task 2, which time frame should you mostly use?

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