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