Spanish language Q&A Forum

What are the equivalents for can't & must not for logical conclusions in Spanish? That is, how can I express the difference in meanings given in the following examples?

(present)

The restaurant can't be open - the door is locked

The restaurant must not be any good - it is always empty

(Past)

He had left the office at 6:00 p.m. He can't /couldn't have been at home at 6:05 p.m

She was not answering the doorbell. She must not have been at home then.

Regards,

Alexander

Hola!

Which modal verb is used to express "may/might"?

Regards, 

Alexander

Hola))

What is a Spanish equivalent for needn't have (done)? 

Hola,

I thought assumption about the past (must have + verb) was expressed by means of DEBE (Deber in El Presented) + Infinitivo Compuesto, however the following examples refute it:

Los chicos han debido de beber bastante porque huelen a alcohol.
They boys must have drunk quite a lot as they smell of alcohol.

El tren debió de llegar sobre las cuatro y media.
The train must have arrived at about four thirty.

Could you please clarify this point, because I'm feeling a bit confused 

Ella ________ famosa después del anuncio de la tele. She became famous after the advert on the TV.

This example seems to be a consequential change (resulting from being on TV) not a voluntary change. The answer given is hacerse, but volverse seems more adequate if my understanding is correct. But this isn't even listed as a verb of change in the lesson. 

Isn't quedarse a better choice than hacerse? I thought hacerse meant a change as a result of a conscious and voluntary effort on the part of a person undergoing the change?

These verbs are so confusing!!!

No quiero que ________ el dinero que te he dado.I don't want you accidently losing the money I gave you.

The answer se te pierda.

Just a thought! Perhaps point out the use of the subjunctive in this example.

¡Hola!

Could you please provide me with Spanish equivalents for modal structures of probabality:

-Must/might/may/could + be (+ V-ing);

past probabality:

-Must have/might have/may have/could have + past participle (+ V-ing);

and their negative forms

Thanks in advance

Regards,

Alexander