Past simple（一般过去时）的否定式与疑问式

He did not enjoy the meal. The negative full form of the past simple is: subject (here, he) + did not + infinitive without to (here, to enjoy). Note: the short form of did not is didn't. Example: I did not/didn't buy that ring.

He does not enjoy the meal is the negative form of the present simple, not of the past simple.

You could say, for example, I will not do what you say in the future simple tense, but here we need the negative form of the past simple.

Did you visit the museum? with did + subject (here, you) + infinitive without to (to visit) to ask a question in the past simple tense. Example: did you enjoy the show?

You could say, for example, I can visit you next Sunday, but that's not a question in the past simple tense.

A visitor is a person who visits a person or a place, but it's not the word we need to create a question here. Example: the museum gets visitors from all over the country.

They didn't get a call, with the short negative form of the past simple: didn't + infinitive without to (to get). Note: this structure is used for both regular and irregular verbs. Examples: to explore → I didn't explore the entire island; to go → I didn't go far.

You could say they didn't go to the restaurant with the verb to go, but in the original sentence we had the verb to get.

A jet is a fast aeroplane, not a form of the verb to get. Example: the president travels by private jet.

Did you check the price? Follow the structure: did + subject (here, you) + infinitive without to (to check) + …? to ask questions in the past simple tense. Example: did she tell you the news?

They didn't like your answer. This is the negative short form of the past simple: subject (they) + didn't + infinitive without to (to like). Example: you didn't clean your room.

Caroline did not cook very well. In the negative form of the past simple, follow the structure: subject (here, Caroline) + did not + infinitive without to (to cook). Example: Magda did not arrive on time.

What did you like? In the past simple, you can ask questions using the structure did + subject (here, you) + infinitive without to (to like). Note: question words (what, when, where, etc.) should be placed at the beginning, before did. Example: where did you go last night?

Roger did not go to work. Add not after did to create the negative form in the past simple tense. Example: my phone did not work.

Did you have lunch yesterday? Use did + subject (you) + infinitive without to (to have) to ask a question in the past simple tense. Note: while the verb to have is irregular in the affirmative form (had), it follows the regular structure in the negative and interrogative forms. Examples: I didn't have any money; did you have a car in the past?