Did you understand the class?
Yes, I fully understood the class.
Did you understand what he said?
Nope, I didn't understand at all what he said.
Will we understand the movie?
Yep, I bet we will. / Yes, I bet we will understand the movie.
Do you agree?
Yes, I fully agree.
Jenny didn't understand anything at all.
Do you think David understood the speech?
Yes, I bet he did. / Yes, I bet David understood the speech.
How much of the conversation did you understand?
I fully understood the conversation.
Does he understand the instructions? (use them)
Nope, he doesn't understand them at all.
Will the kids understand their new nanny?
Yes, I bet they will. / Yes, I bet the kids will understand their new nanny.
Are we likely to understand the whole video?
Yes, we're likely to understand the whole video.
Do you like her?
No, I don't like her at all!
Do you think we'll be able to travel in August?
Yes, I bet we will. / Yes, I bet we'll be able to travel in August.
Do you understand what I'm trying to say?
Yes, I fully understand what you're trying to say.
No, I wouldn't like it at all.
Do you think she'll like the sushi?
Yes, I bet she will. / Yes, I bet she'll like the sushi.