I might behave you might behave he might behave we might behave you might behave they might behave
V-ing form
I might be behaving you might be behaving he might be behaving we might be behaving you might be behaving they might be behaving
Perfect
I might have behaved you might have behaved he 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 he 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 he 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 he 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 he 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 he 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 he behave? might we behave? might you behave? might they behave?
V-ing form
might I be behaving? might you be behaving? might he be behaving? might we be behaving? might you be behaving? might they be behaving?
Perfect
might I have behaved? might you have behaved? might he 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 he 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 he 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 he 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 he 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 he have been behaving? mightn't we have been behaving? mightn't you have been behaving? mightn't they have been behaving?