Destination B2 - Unit 3: Past Time

Grammar Reference — Past Time

Choose past forms by meaning, time reference and context. Study the guide, then explore memories of a community observatory.

In the observatory archive, event order and duration matter. Decide what was in progress, what was complete, or what became familiar; then check the verb pattern.

How to Form It

Past simple and past continuous

Forms: past simple: verb-ed / irregular past; negative: did not + base; question: did + subject + base. Past continuous: was/were + -ing; negative: was/were not + -ing; question: was/were + subject + -ing.

Past simple — completed event or repeated action:
Positive: The curator found a date on the glass plate.
Negative: The curator did not find a date.
Question: Did the curator find a date?

Past continuous — action underway at a past time:
Positive: Mina was interviewing a former assistant.
Negative: Mina was not interviewing the caretaker.
Question: Was Mina recording the interview?

After did/did not, use the base verb. Simple past moves a story forward; continuous past sets its scene.

Past perfect simple and continuous

Past perfect simple — had + past participle:
Positive: They had labelled the plates before opening.
Negative: They had not labelled the last box.
Question: Had they labelled it before opening?

Past perfect continuous — had been + -ing:
Positive: She had been checking the log for an hour.
Negative: She had not been checking the east-wing log.
Question: Had she been checking it for long?

Look back from a past reference point: choose simple for a result or state, continuous when the earlier activity or duration matters.

Past habits: used to and would

Positive: Our guide used to keep a notebook. / She would sketch the moon each week.
Negative: She did not use to work at the observatory.
Question: Did she use to draw star maps?

Used to describes former states and repeated actions. Would describes repeated actions in a clear past setting, but not usually states such as ownership or location.

Be/get used to

Be used to + noun/-ing: He is used to handling fragile plates. (familiar now)
Get used to + noun/-ing: He got used to working under red lamps. (became familiar)
Negative: She was not used to speaking on radio.
Question: Did they get used to the new schedule?

Here to is a preposition followed by a noun or -ing. In used to work, it is followed by the base verb.

Clue Words & Patterns

Clue chips: order and duration

at that moment → underwaywhile → often backgroundwhen → often interrupting eventby the time → look backbefore / already → identify earlier eventfor three hours → durationsince Monday → starting pointevery winter → repeated routine

While Jo was checking the lens, the caretaker rang. Checking was in progress; ringing was the shorter event. By the time Jo arrived, the lens had been cleaned. Cleaning happened first. Time words help, but context decides.

Compare event focus

The assistant copied the log. A completed event.
The assistant was copying the log when the bell rang. An action underway at an interruption.
The assistant had copied the log before the curator arrived. A completed earlier result.
The assistant had been copying for an hour when the curator arrived. Duration leading up to a later past event.

State verbs such as know usually take simple forms: She had known the guide for years.

Clue chips: habit and adjustment

used to + base → former habit/statewould + base → repeated past actiondidn’t use to → past negative habitbe used to + noun/-ing → familiar stateget used to + noun/-ing → adjustment

There used to be a station on the roof. describes a former state. The guide would open the shutters each morning. describes repeated action. The guide got used to opening them in the dark. describes adjustment.

Choose simple or continuous perfect

They had stored every recording before the storm. Focus: completed set and result.
They had been storing recordings for months before the storm. Focus: duration.
By then, Mara had known about the bell for years. State verbs take simple perfect in this meaning.

Past perfect clarifies an earlier event when needed; it does not replace every past simple verb in a story.

Which action was underway: “I was reading the log when the lights went out”?

Reading the log. Past continuous marks the longer action; went out is the completed event.

Watch Out & Common Mistakes

Match the form to the meaning

Wrong: ~~They had catalogue twelve boxes by noon.~~
Better: They had catalogued twelve boxes by noon.
Had requires the past participle catalogued; the number and deadline also present a completed result.

Wrong: ~~She had been knowing the caretaker since 2018.~~
Better: She had known the caretaker since 2018.
Know is a state here, so simple perfect expresses the earlier relationship.

Keep habit and familiarity patterns distinct

Wrong: ~~There used to being a dome on the hill.~~
Better: There used to be a dome on the hill.
Used to takes the base verb be to describe a former state; being is not the correct form.

Wrong: ~~Rafi is used to work in the darkroom.~~
Better: Rafi is used to working in the darkroom.
Familiarity to is a preposition and takes a noun or -ing form.

Wrong: ~~Did she used to record interviews?~~
Better: Did she use to record interviews?
Did carries past tense, so use base form use.

By the time visitors arrived, the guide ___ (finish) the plan. Which form fits?

Had finished. The plan was complete before the later arrival.

Choose the natural phrase: “The caretaker would know / used to know every dial.”

Used to know. Knowing is a state; would describes repeated actions.

Before answering: locate the past reference point; decide what was complete, underway or repeated; then check whether the sentence shows a past habit, former state or growing familiarity.