知っていればさえいればなぁ。の英語

If only I knew!

If only I knew, I would tell you all that I knew.

You ought to know.

If I only knew!＝If only I knew!

I wish I'd known.

You know.

If only I knew, I would tell you all that I knew.

Hey, you know what?

Of course I know.

You should know it.

Had I known it, I would have told you.

If I'd known it, I would've told you.

If I'd known it, I'd have told you.

If I had known it, I would have told you.

I know the truth.

I shrink from saying what I know.

I know the ropes.

I thought that you already knew.

I thought you already knew.

I bet that you know it.

You know a lot.

What if it should, by any chance, become known?

Who doesn't know?

Everyone knows that.

Everybody knows that.

It is one thing to know and another to teach.

I know a thing or two.

Anybody knows it.

Everybody knows that.

Hey, you know what?