could might must 后需要加be吗?例如,Is the man running for exercise (might)---The man might be running for exercise.那么,Is the strange creature an alien (could)该怎么改?Is she looking for something (must )怎么改?Dose gesture mean "hel

could might must 后需要加be吗?例如,Is the man running for exercise (might)---The man might be running for exercise.那么,Is the strange creature an alien (could)该怎么改?Is she looking for something (must )怎么改?Dose gesture mean "hel
could might must 后需要加be吗?
例如,Is the man running for exercise (might)---The man might be running for exercise.
那么,Is the strange creature an alien (could)该怎么改?
Is she looking for something (must )怎么改?
Dose gesture mean "hello"?(might)怎么改?
Will our team win the match (could)怎么改
Is the woman with a camera coming to our school (most )怎么改?

could might must 后需要加be吗?例如,Is the man running for exercise (might)---The man might be running for exercise.那么,Is the strange creature an alien (could)该怎么改?Is she looking for something (must )怎么改?Dose gesture mean "hel
could might must 后面要加动词原形
当是形容词,名词或者动词ing形式（动名词）的时候就要在could might must 后面先加be
Is the strange creature an alien (could)
The strange creature could be an alien.
Is she looking for something (must )
She must be looking for something.
这里是动名词,要先加be
Dose gesture mean "hello"?(might)
The gesture might mean "hello".
这里mean就是动词原形,可以直接加
Will our team win the match (could)
Our team coule win the match.
Is the woman with a camera coming to our school (most
The woman with a camera must be coming to our school.

The strange creature could be an alien
She must be looking for something
Gesture might mean "hello"
Our team could win the match
The woman with a camera most be coming to our school

The strange creature could be an alien.
She must be looking for something.
Gesture might mean "hello".
Our team could win the match.
The woman with a camera must be coming to our school.
情态动词+原形，但是对于现在进行时来说,be doing就是原形

有is的+be没有的不用 直接加动词原形
The strange creature could be an alien
She must be looking for something.
Gesture might mean "hello".
Our team could win the match.
The woman with a camera must be coming to our school

The strange creature could be an alien.
She must be looking for something.
Gesture might mean "hello"?
Our team could win the match.
The woman with a camera must be coming to our school.
不一定要加be 要看缺不缺助动词 或者be作为一个动词