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Hoy os dejamos unos “truquis” para utilizar los modales de obligación “must & have to” y también cómo expresar falta de obligación (lack of obligation) con los modales don’t have to, don’t need to, didn’t need to. Vamos allá!

HAVE TO / MUST

We use these verbs to say that is necessary to do something, but there are some differences:

Have to
The speaker is just giving facts. Or there’s an «outside authority» who tells you to do something.
E.g. I have to complete the report for our client.

We can use “have to” in all verb tenses.

Must
The speaker thinks is necessary, feels is his responsibility to do something.
E.g. I must finish all these paperwork today.

We only use “must” in the present tense, to express obligation in other tenses we use “have to”.
E.g. I had to finish all the paperwork last Friday.
I will have to finish all the paperwork before Friday.

 

DON’T HAVE TO / MUSTN’T

When used in the negative form, they mean different things:

Don’t have to /don’t need to
It means
is NOT necessary that we do something.
E.g. You don’t have to bring anything.
They don’t need to bring anything.

Mustn’t
It means is necessary NOT to do something. (it’s an obligation not to do something).
E.g.He mustn’t talk to us like that.
You mustn’t tell anyone.
We mustn’t be late for the meeting.

 

DIDN’T NEED TO / DIDN’T HAVE TO DO

We use didn’t need to / didn’t have to meaning that something was not done because it was not necessary.
E.g. We didn’t need to call the technical services, we just fixed it ourselves.
They didn’t need to work until late. We still have time until deadline.
I didn’t have to prepare a cake, but they all appreciated it.

 

Parece mucho pero en realidad son tres cositas, te las resumimos:

-Must / have to > obligación, sobre todo “have to” que se puede utilizar en cualquier tiempo verbal

-Mustn’t > obligación de NO hacer algo (o prohibición de hacer algo)

-Don’t have to / don’t need to (y sus formas en pasado) > falta de obligación, o lo que es lo mismo, no es necesario hacer algo.

Esperamos que te sirva de ayuda 😉

 

To care is to share (o dicho de otra forma, si te ha gustado comparte!)

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    To take after someone – to look like someone, to have a similar appearance or personality- parecerse a alguien

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    After the concert finished, the crew took down the stage.

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    To take something in – to assimilate or understand information – comprender o asimilar información.

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    The plane will take off in 30 minutes.

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    To take something off

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    I’ll take two days off next week.

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    Our company is taking on more employees next month.

    To take something on – to accept some work or responsibility – aceptar/asumir responsabilidades

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    His real intention was to take over the company.
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    These books are taking up all the space in my room.
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