我们大概会在六点到达。
wǒmen dàgài huì zài liù diǎn dàodá 。
We will probably arrive around six o'clock.
这个问题大概很难回答。
zhègè wèntí dàgài hěn nán huídá 。
This question is roughly hard to answer.
他大概不知道发生了什么。
tā dàgài bùzhīdào fāshēng le shénme 。
He probably doesn't know what happened.