how do you say 'I understand, sadly' in french?

"Je comprends, malheureusement" is more 'unfortunately' than sadly.

I liked Flip's "je comprends, à mon grand regrêt", which would mean that you're sad about the subject of conversation, and you regret that it's happening, but you understand it all.

Either's fine. :)

The direct translation would be something like:

Je comprends, malheureusement.

Of course, you might want to change this depending on the exact context.

If this was true, why would we have to go to school? Look, when you sleep, that's basically the time your brain has 0 distractions, and when it "saves" everything from that day. Listening to music just makes it worse.

Je comprends, malheureusement/tristement.

malheureusement = a little stronger than tristement.

Je comprends, malheureusement.

or

Je comprends, à mon grand regrêt.

je comprends, malheureusement

je comprends, tristement

je comprend, tristement.

screw french, i'm going to tell you it in italian, because i feel italian deserves some spotlight, french is NOT all that and a bag of chips.

capisco, tristemente.

stop saying italian is a waste of time!!!!!!!! you HURT people when you say that!!!!!!!