知っているかもしれないけどの英語

You might already know this, but. . .

You ought to know.

As you may have realized...

He must know either.

I know

I’m sure you are fully aware that....

Who cares?

You know.

Rather than that I knew, perhaps I should say...

If I only knew!＝If only I knew!

to the best of my knowledge

You know a lot.

I get it, but

That is the only thing that I know.

I know him

Of course I know.

I know very well.

I know it for a certainty.

I knew it

Who can tell?

the state of having knowledge about something

capable of being known

have cognizance of…

Yes, I know.

We know.

You know about that, don't you?

Hey, you know what?

As if you did not know!

know by heart

You see?