understand logic

Although I understood her logic, I was stunned by her rudeness. / И хотя я понимал ее логику, я был поражен ее грубости.

You don't know what you're saying.

I still don't get this at all.

We didn't know what we were doing.

I think I get it.

You don't seem to understand.

Can you understand that at all?

Don't you see what this means?

I can't figure out what's going on in your head.

I'm getting it now.