English verb conjugation
COULD GEL

Regular verb: gel - gelled - gelled

Affirmation

Simple form	V-ing form
I could gel you could gel he could gel we could gel you could gel they could gel	I could be gelling you could be gelling he could be gelling we could be gelling you could be gelling they could be gelling
Perfect	V-ing perfect
I could have gelled you could have gelled he 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 he 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
I couldn't gel you couldn't gel he couldn't gel we couldn't gel you couldn't gel they couldn't gel	I couldn't be gelling you couldn't be gelling he couldn't be gelling we couldn't be gelling you couldn't be gelling they couldn't be gelling
Perfect	V-ing perfect
I couldn't have gelled you couldn't have gelled he couldn't have gelled we couldn't have gelled you couldn't have gelled they couldn't have gelled	I couldn't have been gelling you couldn't have been gelling he couldn't have been gelling we couldn't have been gelling you couldn't have been gelling they couldn't have been gelling

Interrogative form

Simple form	V-ing form
could I gel? could you gel? could he gel? could we gel? could you gel? could they gel?	could I be gelling? could you be gelling? could he be gelling? could we be gelling? could you be gelling? could they be gelling?
Perfect	V-ing perfect
could I have gelled? could you have gelled? could he 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 he 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
couldn't I gel? couldn't you gel? couldn't he gel? couldn't we gel? couldn't you gel? couldn't they gel?	couldn't I be gelling? couldn't you be gelling? couldn't he be gelling? couldn't we be gelling? couldn't you be gelling? couldn't they be gelling?
Perfect	V-ing perfect
couldn't I have gelled? couldn't you have gelled? couldn't he have gelled? couldn't we have gelled? couldn't you have gelled? couldn't they have gelled?	couldn't I have been gelling? couldn't you have been gelling? couldn't he have been gelling? couldn't we have been gelling? couldn't you have been gelling? couldn't they have been gelling?