Past simple: « to do »: I did

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Past simple: « to do »: I did

We use the Past Simple to refer about completed actions in the past.

Construction: Regular verbs:
very often, the past simple ends are in -ed (or -d, or -ied) (regular verbs).
to look => looked, to hope => hoped, to study => studied,
I work (today) in a web agency. Before, I worked in a cinema.
I invited him, but he decided not to come.
Peter passed his exam because he studied hard.

Construction: Irregular verbs: Learn irregular verbs !
the past simple ends is not in -ed:
be -> was, do -> did, come -> came, give -> gave, go -> went, have -> had, make -> made,
see -> saw, write -> wrote,

USE: We use the Past Simple to refer about completed actions in the PAST:
about a period of time:
I lived in New York for seven years.
We were in London from Monday to Thursday of last week.

about a specific point in time:
I saw him in the street.
He came back last Monday.

with TIME expressions:
yesterday, the day before, four days ago,
three weeks ago, for 6 weeks,
last month, from March to June,
last year, in 2002, in the 1980s,
in the last century, for a long time, in the past.

Interrogative and negative forms: use did/didn’t + infinitive
I write Did you write the letter? I didn’t write the letter.
You see Did you see the movie? I didn’t see the movie.
He learn Did your learn your lesson? I didn’t learn the lesson.
[Write, see, learn are the main verb in the sentence]

DO is the main verb in the sentence? We can use did and DO.
What did you do Friday evening? I didn’t do anything.

BE: the past of BE is was/were

Affirmative – Negative – Question:

I was late
You were late
He/She/It was late
We were late –
You were late
They were late
I wasn’t late
You weren’t late
He wasn’t late
We weren’t late
You weren’t late
They weren’t late
Was I late ?
Were you late?
Was he/she/it late?
Were you late?
Were you late?
Were they late?

With was/were, we don’t use did!