Is could have grammatically correct?

You should never use could of. It is a mistake by careless writers that results from a misunderstanding of spoken English. Since could have is a verb phrase, and of is preposition, you will always know to use could have as long as you can remember the parts of speech of have and of.

When Could is used in sentence?

“Could” is a modal verb used to express possibility or past ability as well as to make suggestions and requests. “Could” is also commonly used in conditional sentences as the conditional form of “can.” Examples: Extreme rain could cause the river to flood the city.

What is the most complicated sentence in English?

Jonathan Coe’s novel, ‘The Rotters’ Club’, contains a sentence of 13,955 words. This is generally considered to be the longest sentence in English literature. One of Molly Bloom’s soliloquies in James Joyce’s epic novel ‘Ulysses’ features a sentence of 4,491 words.

Could have sentences in English?

Could have is used to talk about something that was or wasn’t possible in the past. You could have bought the cheaper jacket, it looked great on you. Ben couldn’t have known about the promotion, I haven’t told anyone yet!

Could have or could have had?

3 Answers. “Which could have” in this case would indicate that the impact is still to come. If the study has concluded then “Could have had” would be much more appropriate. If the study is still in progress, could have an impact is correct.

Can could and could have sentences?

I can’t breathe. We use could and couldn’t to talk about the past: She could speak several languages. They couldn’t dance very well.

What is the difference between ‘could happen’ and ‘could have happened’?

The difference between could happen and could have happened is simple. Could happen is used when something actually had happened in the past.. On the other hand, could have happened is used when something didn’t happen however might have happened.. They looked shocked, as if not believing that all of this could happen to them.

What does it mean when someone says it could have happened?

It could happen. X could have happened means X was believed able to happen because of a past or completed event. This can be used if we know it happened and we are talking about the past possibility, or if we are not sure it happened and saying the possibility still exists. I’m glad the boss didn’t fire me.

What is the meaning of could have in the past?

Could have, should have, would have These past modal verbs are all used hypothetically, to talk about things that didn’t really happen in the past. Could have + past participle 1: Could have + past participle means that something was possible in the past, or you had the ability to do something in the past, but that you didn’t do it.

When to use should have + past participle in a sentence?

2: We can also use should have + past participle to talk about something that, if everything is normal and okay, we think has already happened. But we’re not certain that everything is fine, so we use ‘should have’ and not the present perfect or past simple.