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