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