I understand.
A2I comprehend.
I get it.
A2I comprehend.
It's easy.
A2It's simple to understand or do.
It's difficult.
A2It's hard to understand or do.
I know.
A2I have knowledge of this.
I don't know.
A2I lack knowledge of this.
I think so.
A2I believe it's true.
I don't think so.
A2I believe it's not true.
Let me see.
A2Give me a moment to consider.
Can you repeat that?
A2Please say that again.
I need help.
A2I require assistance.
This is new to me.
A2This is unfamiliar to me.
I'm learning.
A2I'm in the process of acquiring knowledge or skills.
It makes sense.
A2I understand it logically.
It doesn't make sense.
A2I don't understand it logically.
That's right.
A2That's correct.
That's wrong.
A2That's incorrect.
Practice makes perfect.
A2Improving skills requires practice.
Study hard!
A2Work diligently on your studies.
Good job!
A2Well done!
I'm getting the hang of it.
B1I'm starting to understand and be able to do something.
It's starting to click.
B1I'm beginning to understand.
I'm grasping the concepts.
B1I'm beginning to understand the main ideas.
It's all sinking in.
B1I'm gradually understanding everything.