We use the simple past to talk about actions and events in the past. 1 To form the affirmative, we usually add -ed to the infinitive form of the verb: visit visited look look talk talk If the verb ends in -e, we add -d: like liked use use If the verb ends in -y, we change y to i and add -ed: copy cop 2 To form the negative, we use didn’t and the infinitive form of the verb: didn’t stay mix like Note that the simple past form is the same for all persons: I walked. She walked. He didn’t stay. We didn’t stay.
