think suppose believe 等
如：I don't suppose that he is a student
其他情况：
It is not a place where anyone will expect to meet a strange character
=It is a place where no one will.expect to meet a strange character
He doesn't seem to be reading
=He seems not to be reading
=It seems that he is not reading
Not a single word do I know in the sentence
= I don't know a single word in the sentence.
