I might swim you might swim he might swim we might swim you might swim they might swim
V-ing form
I might be swimming you might be swimming he might be swimming we might be swimming you might be swimming they might be swimming
Perfect
I might have swum you might have swum he might have swum we might have swum you might have swum they might have swum
V-ing perfect
I might have been swimming you might have been swimming he might have been swimming we might have been swimming you might have been swimming they might have been swimming
Negation
Simple form
I mightn't swim you mightn't swim he mightn't swim we mightn't swim you mightn't swim they mightn't swim
V-ing form
I mightn't be swimming you mightn't be swimming he mightn't be swimming we mightn't be swimming you mightn't be swimming they mightn't be swimming
Perfect
I mightn't have swum you mightn't have swum he mightn't have swum we mightn't have swum you mightn't have swum they mightn't have swum
V-ing perfect
I mightn't have been swimming you mightn't have been swimming he mightn't have been swimming we mightn't have been swimming you mightn't have been swimming they mightn't have been swimming
Interrogative form
Simple form
might I swim? might you swim? might he swim? might we swim? might you swim? might they swim?
V-ing form
might I be swimming? might you be swimming? might he be swimming? might we be swimming? might you be swimming? might they be swimming?
Perfect
might I have swum? might you have swum? might he have swum? might we have swum? might you have swum? might they have swum?
V-ing perfect
might I have been swimming? might you have been swimming? might he have been swimming? might we have been swimming? might you have been swimming? might they have been swimming?
Interro-negative form
Simple form
mightn't I swim? mightn't you swim? mightn't he swim? mightn't we swim? mightn't you swim? mightn't they swim?
V-ing form
mightn't I be swimming? mightn't you be swimming? mightn't he be swimming? mightn't we be swimming? mightn't you be swimming? mightn't they be swimming?
Perfect
mightn't I have swum? mightn't you have swum? mightn't he have swum? mightn't we have swum? mightn't you have swum? mightn't they have swum?
V-ing perfect
mightn't I have been swimming? mightn't you have been swimming? mightn't he have been swimming? mightn't we have been swimming? mightn't you have been swimming? mightn't they have been swimming?