might miscalculate
Regular verb: miscalculate - miscalculated- miscalculated

Affirmation 	
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I might miscalculate
you might miscalculate
he might miscalculate
we might miscalculate
you might miscalculate
they might miscalculate 	I might be miscalculating
you might be miscalculating
he might be miscalculating
we might be miscalculating
you might be miscalculating
they might be miscalculating	I might have miscalculated
you might have miscalculated
he might have miscalculated
we might have miscalculated
you might have miscalculated
they might have miscalculated	I might have been miscalculating
you might have been miscalculating
he might have been miscalculating
we might have been miscalculating
you might have been miscalculating
they might have been miscalculating	

Negation 	
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I mightn't miscalculate
you mightn't miscalculate
he mightn't miscalculate
we mightn't miscalculate
you mightn't miscalculate
they mightn't miscalculate 	I mightn't be miscalculating
you mightn't be miscalculating
he mightn't be miscalculating
we mightn't be miscalculating
you mightn't be miscalculating
they mightn't be miscalculating	I mightn't have miscalculated
you mightn't have miscalculated
he mightn't have miscalculated
we mightn't have miscalculated
you mightn't have miscalculated
they mightn't have miscalculated	I mightn't have been miscalculating
you mightn't have been miscalculating
he mightn't have been miscalculating
we mightn't have been miscalculating
you mightn't have been miscalculating
they mightn't have been miscalculating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
might I miscalculate?
might you miscalculate?
might he miscalculate?
might we miscalculate?
might you miscalculate?
might they miscalculate? 	might I be miscalculating?
might you be miscalculating?
might he be miscalculating?
might we be miscalculating?
might you be miscalculating?
might they be miscalculating? 	might I have miscalculated?
might you have miscalculated?
might he have miscalculated?
might we have miscalculated?
might you have miscalculated?
might they have miscalculated? 	might I have been miscalculating?
might you have been miscalculating?
might he have been miscalculating?
might we have been miscalculating?
might you have been miscalculating?
might they have been miscalculating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mightn't I miscalculate?
mightn't you miscalculate?
mightn't he miscalculate?
mightn't we miscalculate?
mightn't you miscalculate?
mightn't they miscalculate? 	mightn't I be miscalculating?
mightn't you be miscalculating?
mightn't he be miscalculating?
mightn't we be miscalculating?
mightn't you be miscalculating?
mightn't they be miscalculating? 	mightn't I have miscalculated?
mightn't you have miscalculated?
mightn't he have miscalculated?
mightn't we have miscalculated?
mightn't you have miscalculated?
mightn't they have miscalculated? 	mightn't I have been miscalculating?
mightn't you have been miscalculating?
mightn't he have been miscalculating?
mightn't we have been miscalculating?
mightn't you have been miscalculating?
mightn't they have been miscalculating?