Grammar

GRAMMAR USE STRUCTURE NEGATIVE EXAMPLE
MIGHT/COULD
PODRIA To say that it is possible that something will happen Name + Might/Could + Verb in base form Might not / Could not(couldn’t) I might have better grades.
She might have better grades.
HAVE TO
TENER QUE To express necessity He/she/it + Has to + Verb in base form.
I/you/we/they + Have to + Verb in base form.She has to work.
I have to work.
DON’T HAVE TO
NO TENER QUE To say that something is not necessary to happen. He/she/it + Doesn’t + Have to + Verb in base form.
I/you/we/they + Don’t + Have to +Verb in base form. She doesn’t have to work.
I don’t have to work.
MUST
DEBES To express very strong advice. Name + Must + Verb in base form. He must pay the rent.
They must pay the rentMUSTN’T
NO DEBES To express prohibition. Name + Mustn’t + Verb in base form. Must not/mustn’t You mustn’t eat in the lab.
She mustn’t eat in the lab.
CAN
PUEDES To ask for or give permission Can + Name +Verb in base form?
Name + Can + Verb in base form. Can she go to the party?
Yes, she can go to the party.
CAN’T
NO PUEDES To refuse permission. Name + Can’t + Verb in base form. No, she can’tgo to the party.
BE ALLOWED TO
ESTAR PERMITIDO To ask for, give or refuse permission To be + pronoun + Allowed to + Verb in base form?
Pronoun + To be allowed to + Verb in base form. Am/is/are +not + allowed to Is he allowed to swim?
He is allowed to swim.
He is not allowed to swim.
HAD TO
TUVE QUE To express that there was a necessity in the past. Name + had to + Verb in base form. I hadto stay awake to finish my hmw.
She had to stay awake to finish her hmw.
DIDN’T HAVE TO
NO TUVE QUE To express that something was not necessary to happen. Name + Didn’t have to + Verb in baseform. I/She didn’t have to stay awake. I/She finished on time.
COULD/COULDN’T
PODRIA/
NO PODRIA To express something we could or couldn’t do in the past. Name + Could + Verb in base form.
Name +...