We watched a film yesterday.

Past Simple Tense

This sentence uses the Past Simple tense, which is formed with the past tense of the verb. It is used to describe a completed action that happened at a specific time in the past. The word 'yesterday' clearly indicates that the action is finished.

Explanation: The Past Simple is used for actions that started and finished at a definite time in the past. 'Watched' is the past tense of 'watch'.