Aprende el inglés auténtico de libros y películas.

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Errores frecuentes

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If he asked me, I would stay.
If he would ask me, I would stay.

Express an improbable condition by the past tense and use the conditional in the main clause. This use of the past tense doesn't indicate a time but a degree of probability.

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You ought to have come yesterday.
You ought to come yesterday.
Also possible:
You should have come yesterday.

Don't use must and ought to as past tenses. To express a past duty (which wasn't done) use the perfect infinitive without to after ought to or should, or expressions such as had to, was obliged to.

In indirect speech use must and ought to as past tenses: He said he must do it.

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The train had already left before I arrived.
The train already left before I arrived.

Use the past perfect when the time of one past action is more past than that of another. Put the action which was completed first in the past perfect and the second action in the past tense.

Don't use the present tense and the past perfect in the same sentence. It would be incorrect to say: My brother says that he had not gone to the cinema last night.

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They asked him to be captain, but he refuses.
They asked him to be captain, but he refused.

If you begin with a verb referring to past time, keep the verb forms in the past. The same rule applies to tenses throughout a composition.

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I'm understanding the lesson now.
I understand the lesson now.

As a rule, verbs denoting a state rather than an act have no continuous forms, like understand, know, believe, like, love, belong, prefer, consist, mean, hear, see, etc.

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Tema superado!
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