She explained the whole idea again, but I still didn't understand.
I don't understand half of what he says.
Is there anyone here who understands Arabic?
My teacher help[s] me when I don't understand. (Skills for Life (Entry 1); A1; Lithuanian)
We still don't fully understand how the brain works.
I don't understand why my computer crashes so often.
The teacher expla[i]ned her plan for teaching and we understood how to plan our time. (Preliminary English Test; B1; Pashto)
I don't understand James sometimes.
I understand why she's so angry.
Maybe now you can understand why I hate shopping. kisses, (Preliminary English Test; B1; Spanish)
I understand that the school is due to close next year.
I understand that the job entails enterta[in]ing people. (Certificate in Advanced English; C1; Polish)
I had a little difficulty making myself understood.
(Find enclosed a paper slip on which I have written a destination, number of tickets, etc., in the German language - use it just in case you can't make yourselves understood.) (Certificate in Advanced English; C1; German)