Definition of "have to"
- Used to say that something is required or necessary
- You have to follow the rules.
- We have to correct these problems soon or the project will fail.
Future Tense Forms
Inoltre, will he have to?
- Will generally speaks to the future, so: "You will have to do that" implies that at some point in the future, it will be required, and that it isn’t required now.
- "You have to do that" implies current, and is a requirement now, whether that requirement continues to be present in the future is unspoken.
Questions and Verb Forms
Do he have or does he have?
- The correct form would be “does he have.” The reason is that “have” is the basic form of the verb, and your question could be answered by “he has,” since there is only one verb. But in your examples, there are two verbs, namely “do” and “have”. So the “do” verb is modified to “does” because of the pronoun “he”.
Have to do or had to do?
- “Have to’ is used for the present and future tense, while “Had to” is used for the past tense. The action which has been just completed at the moment or is in continuous form uses the verb ‘have to,” whereas the actions that have been completed in the past use the verb “had to”.
Did had or have?
- “Did” is the past simple tense of the verb “do” while “had” is the past participle tense of the verb “have.” Both are past tense forms of irregular verbs; “did” of the verb “do” and “had” of the verb “have”.
Do they have or does they have?
- We use does and is with third person singular pronouns (he, she, it) and with singular noun forms.
- We use do and are with other personal pronouns (you, we they) and with plural noun forms.
- For the verb be, we need is or are as question words.