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