might upheave
Regular verb: upheave - upheaved- upheaved

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I might upheave
you might upheave
he might upheave
we might upheave
you might upheave
they might upheave 	I might be upheaving
you might be upheaving
he might be upheaving
we might be upheaving
you might be upheaving
they might be upheaving	I might have upheaved
you might have upheaved
he might have upheaved
we might have upheaved
you might have upheaved
they might have upheaved	I might have been upheaving
you might have been upheaving
he might have been upheaving
we might have been upheaving
you might have been upheaving
they might have been upheaving	

Negation 	
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I mightn't upheave
you mightn't upheave
he mightn't upheave
we mightn't upheave
you mightn't upheave
they mightn't upheave 	I mightn't be upheaving
you mightn't be upheaving
he mightn't be upheaving
we mightn't be upheaving
you mightn't be upheaving
they mightn't be upheaving	I mightn't have upheaved
you mightn't have upheaved
he mightn't have upheaved
we mightn't have upheaved
you mightn't have upheaved
they mightn't have upheaved	I mightn't have been upheaving
you mightn't have been upheaving
he mightn't have been upheaving
we mightn't have been upheaving
you mightn't have been upheaving
they mightn't have been upheaving	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
might I upheave?
might you upheave?
might he upheave?
might we upheave?
might you upheave?
might they upheave? 	might I be upheaving?
might you be upheaving?
might he be upheaving?
might we be upheaving?
might you be upheaving?
might they be upheaving? 	might I have upheaved?
might you have upheaved?
might he have upheaved?
might we have upheaved?
might you have upheaved?
might they have upheaved? 	might I have been upheaving?
might you have been upheaving?
might he have been upheaving?
might we have been upheaving?
might you have been upheaving?
might they have been upheaving? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mightn't I upheave?
mightn't you upheave?
mightn't he upheave?
mightn't we upheave?
mightn't you upheave?
mightn't they upheave? 	mightn't I be upheaving?
mightn't you be upheaving?
mightn't he be upheaving?
mightn't we be upheaving?
mightn't you be upheaving?
mightn't they be upheaving? 	mightn't I have upheaved?
mightn't you have upheaved?
mightn't he have upheaved?
mightn't we have upheaved?
mightn't you have upheaved?
mightn't they have upheaved? 	mightn't I have been upheaving?
mightn't you have been upheaving?
mightn't he have been upheaving?
mightn't we have been upheaving?
mightn't you have been upheaving?
mightn't they have been upheaving?