pptx, 6.41 MB
pptx, 6.41 MB
pdf, 1021.21 KB
pdf, 1021.21 KB

MUST + verb form base
(es necesario hacer algo)

MUSTN’T + verb form base
(es necesario NO hacer algo)

NEEDN’T + verb base form
(no necesitas hacerlo, pero puedes hacerlo si quieres)

You needn’t call her.
(needn’t + verb base form)

We needn’t hurry.

She needn’t call her mom.

You don’t need to call her.
(don’t need + to +verb base form)

We don’t need to hurry.

She doesn’t need to call her mom.

We needn’t hurry. We have a lot of time.
(no es necesario)

We needn’t have hurried. We had a lot of time.
(nos apresuramos aunque no era necesario)

didn’t need to do something
= no era necesario que lo hiciera y lo sabía en ese momento

(es posible usar didn’t have to)

needn’t have done something
= lo hice, pero se que no fue necesario

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