If the verb ends in a short vowel and a consonant (except "y" or "w"), we double the final consonant

In both the interrogative and negative forms, DID is used as the auxiliary DID, which is the past form of the verb "TO DO" and accompanies the main verb in its infinitive form.

The simple past of some English verbs does not end in -ed, but has an irregular shape, which is the same for all people.

Irregular verbs do not follow general orthographic norms, so you have to learn them from memory

The simple past is used to speak of actions that happened at a particular moment in the past. In these phrases there are expressions of time such as yesterday, last week, last night, and so on.