The negative form of did is did not or when speaking, didn’t. Also, in spoken English we usually use the contracted form of does not which is doesn’t. In spoken English it is common to use the contracted form of do not which is don’t. Did he call you? Did you enjoy it? Negatives The negative form of do is do not. Does he work with you? Does she have a car? Does it snow in winter? Past Tense Did is the past form of both do and does. Do I know you? Do you come from England? Do we have to cut the grass? Do they want to come with us? Does We use does with third person singular pronouns i.e when the subject is he, she or it. Do We use do when the subject is I, you, we or they. Below are two sentences with two different subjects, she and you. We use do or does depending on the subject.
Read The use of Do/ Does in English by Ea Englishĭo and does are used when we want to ask yes/no questions.