could gel
Regular verb: gel - gelled- gelled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could gel
you could gel
she could gel
we could gel
you could gel
they could gel 	I could be gelling
you could be gelling
she could be gelling
we could be gelling
you could be gelling
they could be gelling	I could have gelled
you could have gelled
she could have gelled
we could have gelled
you could have gelled
they could have gelled	I could have been gelling
you could have been gelling
she could have been gelling
we could have been gelling
you could have been gelling
they could have been gelling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not gel
you could not gel
she could not gel
we could not gel
you could not gel
they could not gel 	I could not be gelling
you could not be gelling
she could not be gelling
we could not be gelling
you could not be gelling
they could not be gelling	I could not have gelled
you could not have gelled
she could not have gelled
we could not have gelled
you could not have gelled
they could not have gelled	I could not have been gelling
you could not have been gelling
she could not have been gelling
we could not have been gelling
you could not have been gelling
they could not have been gelling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I gel?
could you gel?
could she gel?
could we gel?
could you gel?
could they gel? 	could I be gelling?
could you be gelling?
could she be gelling?
could we be gelling?
could you be gelling?
could they be gelling? 	could I have gelled?
could you have gelled?
could she have gelled?
could we have gelled?
could you have gelled?
could they have gelled? 	could I have been gelling?
could you have been gelling?
could she have been gelling?
could we have been gelling?
could you have been gelling?
could they have been gelling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not gel?
could you not gel?
could she not gel?
could we not gel?
could you not gel?
could they not gel? 	could I not be gelling?
could you not be gelling?
could she not be gelling?
could we not be gelling?
could you not be gelling?
could they not be gelling? 	could I not have gelled?
could you not have gelled?
could she not have gelled?
could we not have gelled?
could you not have gelled?
could they not have gelled? 	could I not have been gelling?
could you not have been gelling?
could she not have been gelling?
could we not have been gelling?
could you not have been gelling?
could they not have been gelling?