Example

Simple Past/Past Simple - Brief version

Affirmative sentences:

regular verbs	irregular verbs
I played football.	I went to the cinema.
We visited Alaska last year.	We were in Rome yesterday.

Negative sentences:

You must not negate a full verb in English. Always use the auxiliary did (Simple Past of to do) for negations.

I		played	football.
I	didn't	play	football.
He	didn't	play	football.

Questions:

Use the auxiliary did (Simple Past of to do).
Did you play football?