Yes / no questions with 吗
In Chinese, 吗 (ma) is the modal particle that marks a question.
It normally comes at the end of the sentence and turns a statement into a question answered with yes or no.
Basic structure
Statement + 吗?
Meaning:
…?
你也很忙吗?
Are you very busy too?
Structure
你也很忙 + 吗?
you are very busy too + ?
你you
也also
很忙very busy
吗question particle
你是他的中文老师吗?
Are you his Chinese teacher?
Structure
你是他的中文老师 + 吗?
you are his Chinese teacher + ?
你you
是be
他的his
中文老师Chinese teacher
吗question particle
你有姐姐吗?
Do you have an older sister?
Structure
你有姐姐 + 吗?
you have an older sister + ?
你you
有have
姐姐older sister
吗question particle
The rule in short
Add 吗 to a plain statement and it becomes a yes / no question.
Statement + 吗?
Examples:
你也很忙吗?
Are you very busy too?
你是他的中文老师吗?
Are you his Chinese teacher?
你有姐姐吗?
Do you have an older sister?