Had known or would have known?

Correct: If I had known that you were going to the movies, [then] I would have gone too. The conditional perfect can only go in the “then” clause — it is grammatically incorrect to use the conditional perfect in the “if” clause: Incorrect: If I would have known that you were going to the movies, I would have gone too.

What tense is would have known?

When talking about something that didn’t happen in the past, many English speakers use the conditional perfect (if I would have done) when they should be using the past perfect (if I had done). If I had known, [then] I would have told you. If I would have known, I would have told you.

Is would’ve grammatically correct?

As Loob says, “would’ve” is conventionally used to represent a special kind of speech. Ordinary speech is represented by “would have” (even though we are actually saying “would’ve”).

Would have known or knew?

If you have known him the whole time, the only choice is: I have known Tom since he was just five years old. There is a case where “I knew” works in this sentence. If Tom is no longer living it would be appropriate to say “I knew” instead of “I have known.”

What’s the difference between knew and known?

“I knew” refers to something that happened in the past, “I had known” refers to something that happened further in the past, compared with a standpoint in the past.

Would have known or would known?

“Would have known” implies that the situation is over. There is no longer anything that can be done about it, but now they are thinking about how Anna would have made it better. “Would know” implies that they are still trying to figure out what to do.

Would you have grammar conditional?

We do not normally use will or would in the conditional clause, only in the main clause….First, Second, and Third Conditional.

1. First conditional:	If I have enough money, I will go to Japan.
2. Second conditional:	If I had enough money, I would go to Japan.
3. Third conditional:	If I had had enough money, I would have gone to Japan.

Why do people say would of instead of would ve?

It’s simply because, in many dialects, the sounds of “‘ve” and “of” in “I would’ve bought two of them” are very similar or identical. People often confuse words that sound the same: there/their/they’re, your/you’re, etc.

Who would’ve known or knew?

“knew” is past tense, “had known” is past perfect tense. Standard convention when writing is to use third-person past for the narrative. So, you would use “she knew” for anything that the woman knew in her own present time. However, you need to observe the distinction between present perfect and past perfect.

What is a sentence for known?

I have known very few like her. We have known each other so long! I have known him longer than that. I should then have known how to answer you.