English verb conjugation
MIGHT SUSTAIN

Regular verb: sustain - sustained - sustained

Affirmation

Simple form	V-ing form
I might sustain you might sustain he might sustain we might sustain you might sustain they might sustain	I might be sustaining you might be sustaining he might be sustaining we might be sustaining you might be sustaining they might be sustaining
Perfect	V-ing perfect
I might have sustained you might have sustained he might have sustained we might have sustained you might have sustained they might have sustained	I might have been sustaining you might have been sustaining he might have been sustaining we might have been sustaining you might have been sustaining they might have been sustaining

Negation

Simple form	V-ing form
I mightn't sustain you mightn't sustain he mightn't sustain we mightn't sustain you mightn't sustain they mightn't sustain	I mightn't be sustaining you mightn't be sustaining he mightn't be sustaining we mightn't be sustaining you mightn't be sustaining they mightn't be sustaining
Perfect	V-ing perfect
I mightn't have sustained you mightn't have sustained he mightn't have sustained we mightn't have sustained you mightn't have sustained they mightn't have sustained	I mightn't have been sustaining you mightn't have been sustaining he mightn't have been sustaining we mightn't have been sustaining you mightn't have been sustaining they mightn't have been sustaining

Interrogative form

Simple form	V-ing form
might I sustain? might you sustain? might he sustain? might we sustain? might you sustain? might they sustain?	might I be sustaining? might you be sustaining? might he be sustaining? might we be sustaining? might you be sustaining? might they be sustaining?
Perfect	V-ing perfect
might I have sustained? might you have sustained? might he have sustained? might we have sustained? might you have sustained? might they have sustained?	might I have been sustaining? might you have been sustaining? might he have been sustaining? might we have been sustaining? might you have been sustaining? might they have been sustaining?

Interro-negative form

Simple form	V-ing form
mightn't I sustain? mightn't you sustain? mightn't he sustain? mightn't we sustain? mightn't you sustain? mightn't they sustain?	mightn't I be sustaining? mightn't you be sustaining? mightn't he be sustaining? mightn't we be sustaining? mightn't you be sustaining? mightn't they be sustaining?
Perfect	V-ing perfect
mightn't I have sustained? mightn't you have sustained? mightn't he have sustained? mightn't we have sustained? mightn't you have sustained? mightn't they have sustained?	mightn't I have been sustaining? mightn't you have been sustaining? mightn't he have been sustaining? mightn't we have been sustaining? mightn't you have been sustaining? mightn't they have been sustaining?