I might behave you might behave she might behave we might behave you might behave they might behave
V-ing form
I might be behaving you might be behaving she might be behaving we might be behaving you might be behaving they might be behaving
Perfect
I might have behaved you might have behaved she might have behaved we might have behaved you might have behaved they might have behaved
V-ing perfect
I might have been behaving you might have been behaving she might have been behaving we might have been behaving you might have been behaving they might have been behaving
Negation
Simple form
I mightn't behave you mightn't behave she mightn't behave we mightn't behave you mightn't behave they mightn't behave
V-ing form
I mightn't be behaving you mightn't be behaving she mightn't be behaving we mightn't be behaving you mightn't be behaving they mightn't be behaving
Perfect
I mightn't have behaved you mightn't have behaved she mightn't have behaved we mightn't have behaved you mightn't have behaved they mightn't have behaved
V-ing perfect
I mightn't have been behaving you mightn't have been behaving she mightn't have been behaving we mightn't have been behaving you mightn't have been behaving they mightn't have been behaving
Interrogative form
Simple form
might I behave? might you behave? might she behave? might we behave? might you behave? might they behave?
V-ing form
might I be behaving? might you be behaving? might she be behaving? might we be behaving? might you be behaving? might they be behaving?
Perfect
might I have behaved? might you have behaved? might she have behaved? might we have behaved? might you have behaved? might they have behaved?
V-ing perfect
might I have been behaving? might you have been behaving? might she have been behaving? might we have been behaving? might you have been behaving? might they have been behaving?
Interro-negative form
Simple form
mightn't I behave? mightn't you behave? mightn't she behave? mightn't we behave? mightn't you behave? mightn't they behave?
V-ing form
mightn't I be behaving? mightn't you be behaving? mightn't she be behaving? mightn't we be behaving? mightn't you be behaving? mightn't they be behaving?
Perfect
mightn't I have behaved? mightn't you have behaved? mightn't she have behaved? mightn't we have behaved? mightn't you have behaved? mightn't they have behaved?
V-ing perfect
mightn't I have been behaving? mightn't you have been behaving? mightn't she have been behaving? mightn't we have been behaving? mightn't you have been behaving? mightn't they have been behaving?