Have to

Se usa 'have to' para expresar obligación en inglés. Se forma con have to + el verbo infinitivo.

AFIRMATIVO
I have to
you have to
he/she/it has to
we have to they have to

NEGATIVO
I don´t have to
you don´t have to
he/she/it doesn´t have to
we don´t have to
they don´t have to

INTEROGATIVO
do you have to
does he/she/it have to
do we have to
do they have to

Ejemplos:
I have to work everyday. (tengo que trabajar todos los dias)
I don´t have to work everday. ( no tengo que trabajar todos los dias)
Do you have to work everyday? (¿tienes que trabajar todos los dias?)

Se usa para decir que algo es necesario.

Tips, si el sujeto es he/she/it se usa has en vez de have excepto en preguntas y negativos

Ejemplos:
He has to work everyday. (tiene que trabajar todos los dias)

Negativo : He doesn´t have to work everyday. (no tiene que trabajar todos los dias).


Para preguntas se usa el verbo auxilliar do o does +sujeto + have to + verbo infinitivo.

Ejemplos:
Do you have to work everyday? (¿tienes que trabajar todos los dias?)
Does he have to work everyday?(¿tiene que trabajar todos los dias?)