I'm sorry, (I/not/understand).Can you speak more slowly?

I'm sorry, (I/not/understand).Can you speak more slowly?
I'm sorry, (I/not/understand).Can you speak more slowly?

I'm sorry, (I/not/understand).Can you speak more slowly?
I don't understand.
understand 是实义动词,否定形式就需借助 助动词do

I don't understand.

【俊狼猎英】团队为您解答。

I don't understand.
understand 是实义动词，

I'm sorry, (I/not/understand).Can you speak more slowly?
答案：I don't understand.
简单翻一下：对不起，我不能理解。你能说得慢一点吗？
希望对你有帮助！