"Have to": meaning, explanation and examples.

Have to it's a semi-modal verbs, it acts like a verb the majority of time but it needs another verb to make sense. It's means "tener que" o "no tener que" and it's used to indicate an obligation or necessity,  that is to imposed by others, we are talking about a responsibility.

Structure: SUBJET + AUXILIARY + HAVE TO/HAS TO + VERB 

Remember that "have" hanges depending on the pronoun with which it's conjugated.

Affirmative form:

                              SUBJET + HAVE TO/HAS TO + BASE FORM OF THE VERB.

Ex.  You have to wear uniform at work. (obligation)

        I have to study for the exam. (necessity)

Negative form: 

we need the auxiliaries (don't/doesn't) to form negative.

SUBJET +  DON'T / DOESN'T+ HAVE TO + BASE FORM OF THE VERB.

Ex. I don't have to wear uniform for my job because I'm a teacher.

       Elena doesn't has to pay for the damages.

Question form: 

 we need the auxiliaries (do/does) to form question.

•  DO/ DOES + SUBJECT + HAVE TO + BASE FORM OF THE VERB.
• WH-QUESTIONS + DO/ DOES + SUBJECT + HAVE TO + BASE FORM OF THE VERB.

Ex. Does she have to come here?

      What do they have to do to win the game?

        

To practice:

1. Exercise 1

2. Exercise 2