can unstick
Regular verb: unstick - unsticked- unsticked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can unstick
you can unstick
he can unstick
we can unstick
you can unstick
they can unstick 	I can be unsticking
you can be unsticking
he can be unsticking
we can be unsticking
you can be unsticking
they can be unsticking	I can have unsticked
you can have unsticked
he can have unsticked
we can have unsticked
you can have unsticked
they can have unsticked	I can have been unsticking
you can have been unsticking
he can have been unsticking
we can have been unsticking
you can have been unsticking
they can have been unsticking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot unstick
you cannot unstick
he cannot unstick
we cannot unstick
you cannot unstick
they cannot unstick 	I cannot be unsticking
you cannot be unsticking
he cannot be unsticking
we cannot be unsticking
you cannot be unsticking
they cannot be unsticking	I cannot have unsticked
you cannot have unsticked
he cannot have unsticked
we cannot have unsticked
you cannot have unsticked
they cannot have unsticked	I cannot have been unsticking
you cannot have been unsticking
he cannot have been unsticking
we cannot have been unsticking
you cannot have been unsticking
they cannot have been unsticking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I unstick?
can you unstick?
can he unstick?
can we unstick?
can you unstick?
can they unstick? 	can I be unsticking?
can you be unsticking?
can he be unsticking?
can we be unsticking?
can you be unsticking?
can they be unsticking? 	can I have unsticked?
can you have unsticked?
can he have unsticked?
can we have unsticked?
can you have unsticked?
can they have unsticked? 	can I have been unsticking?
can you have been unsticking?
can he have been unsticking?
can we have been unsticking?
can you have been unsticking?
can they have been unsticking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not unstick?
can you not unstick?
can he not unstick?
can we not unstick?
can you not unstick?
can they not unstick? 	can I not be unsticking?
can you not be unsticking?
can he not be unsticking?
can we not be unsticking?
can you not be unsticking?
can they not be unsticking? 	can I not have unsticked?
can you not have unsticked?
can he not have unsticked?
can we not have unsticked?
can you not have unsticked?
can they not have unsticked? 	can I not have been unsticking?
can you not have been unsticking?
can he not have been unsticking?
can we not have been unsticking?
can you not have been unsticking?
can they not have been unsticking?