We use the past simple to describe a finished event at a specific time in the past. WHEN?

Last year Last week Last month YESTERDAY …AGO in 1978

Past simple verbs can be regular or irregular.

Regular verbs end –d or –ed. Irregular verbs have irregular past forms (V2)

I helped/went we helped/went

You helped/went you helped/went

He helped/went they helped/went

She helped/went It helped/went

We form questions with regular and irregular verbs in the past simple with did+ infinitive(V1).

Did I help/go? Did we help/go? Did you help/go? Did youhelp/go? Did he help/go? Did theyhelp/go? Did she help/go? Did it help/go?

We form the negative form of regular and irregular verbs in the past simple with didn’t +infinitive (V1).

I did not help/go we did not help/go

You did not help/go you did not help/go

He did not help/go theydid not help/go

She did not help/go It did not help/go