might purchase
Regular verb: purchase - purchased- purchased

Affirmation 	
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I might purchase
you might purchase
he might purchase
we might purchase
you might purchase
they might purchase 	I might be purchasing
you might be purchasing
he might be purchasing
we might be purchasing
you might be purchasing
they might be purchasing	I might have purchased
you might have purchased
he might have purchased
we might have purchased
you might have purchased
they might have purchased	I might have been purchasing
you might have been purchasing
he might have been purchasing
we might have been purchasing
you might have been purchasing
they might have been purchasing	

Negation 	
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I mightn't purchase
you mightn't purchase
he mightn't purchase
we mightn't purchase
you mightn't purchase
they mightn't purchase 	I mightn't be purchasing
you mightn't be purchasing
he mightn't be purchasing
we mightn't be purchasing
you mightn't be purchasing
they mightn't be purchasing	I mightn't have purchased
you mightn't have purchased
he mightn't have purchased
we mightn't have purchased
you mightn't have purchased
they mightn't have purchased	I mightn't have been purchasing
you mightn't have been purchasing
he mightn't have been purchasing
we mightn't have been purchasing
you mightn't have been purchasing
they mightn't have been purchasing	

Interrogative form 	
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might I purchase?
might you purchase?
might he purchase?
might we purchase?
might you purchase?
might they purchase? 	might I be purchasing?
might you be purchasing?
might he be purchasing?
might we be purchasing?
might you be purchasing?
might they be purchasing? 	might I have purchased?
might you have purchased?
might he have purchased?
might we have purchased?
might you have purchased?
might they have purchased? 	might I have been purchasing?
might you have been purchasing?
might he have been purchasing?
might we have been purchasing?
might you have been purchasing?
might they have been purchasing? 	

Interro-negative form 	
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mightn't I purchase?
mightn't you purchase?
mightn't he purchase?
mightn't we purchase?
mightn't you purchase?
mightn't they purchase? 	mightn't I be purchasing?
mightn't you be purchasing?
mightn't he be purchasing?
mightn't we be purchasing?
mightn't you be purchasing?
mightn't they be purchasing? 	mightn't I have purchased?
mightn't you have purchased?
mightn't he have purchased?
mightn't we have purchased?
mightn't you have purchased?
mightn't they have purchased? 	mightn't I have been purchasing?
mightn't you have been purchasing?
mightn't he have been purchasing?
mightn't we have been purchasing?
mightn't you have been purchasing?
mightn't they have been purchasing?