can upheave
Regular verb: upheave - upheaved- upheaved

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't upheave
you can't upheave
she can't upheave
we can't upheave
you can't upheave
they can't upheave 	I can't be upheaving
you can't be upheaving
she can't be upheaving
we can't be upheaving
you can't be upheaving
they can't be upheaving	I can't have upheaved
you can't have upheaved
she can't have upheaved
we can't have upheaved
you can't have upheaved
they can't have upheaved	I can't have been upheaving
you can't have been upheaving
she can't have been upheaving
we can't have been upheaving
you can't have been upheaving
they can't have been upheaving	

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

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