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