English verb conjugation
COULD LONGJUMP

Regular verb: longjump - longjumped - longjumped

Affirmation

Simple form	V-ing form
I could longjump you could longjump he could longjump we could longjump you could longjump they could longjump	I could be longjumping you could be longjumping he could be longjumping we could be longjumping you could be longjumping they could be longjumping
Perfect	V-ing perfect
I could have longjumped you could have longjumped he could have longjumped we could have longjumped you could have longjumped they could have longjumped	I could have been longjumping you could have been longjumping he could have been longjumping we could have been longjumping you could have been longjumping they could have been longjumping

Negation

Simple form	V-ing form
I couldn't longjump you couldn't longjump he couldn't longjump we couldn't longjump you couldn't longjump they couldn't longjump	I couldn't be longjumping you couldn't be longjumping he couldn't be longjumping we couldn't be longjumping you couldn't be longjumping they couldn't be longjumping
Perfect	V-ing perfect
I couldn't have longjumped you couldn't have longjumped he couldn't have longjumped we couldn't have longjumped you couldn't have longjumped they couldn't have longjumped	I couldn't have been longjumping you couldn't have been longjumping he couldn't have been longjumping we couldn't have been longjumping you couldn't have been longjumping they couldn't have been longjumping

Interrogative form

Simple form	V-ing form
could I longjump? could you longjump? could he longjump? could we longjump? could you longjump? could they longjump?	could I be longjumping? could you be longjumping? could he be longjumping? could we be longjumping? could you be longjumping? could they be longjumping?
Perfect	V-ing perfect
could I have longjumped? could you have longjumped? could he have longjumped? could we have longjumped? could you have longjumped? could they have longjumped?	could I have been longjumping? could you have been longjumping? could he have been longjumping? could we have been longjumping? could you have been longjumping? could they have been longjumping?

Interro-negative form

Simple form	V-ing form
couldn't I longjump? couldn't you longjump? couldn't he longjump? couldn't we longjump? couldn't you longjump? couldn't they longjump?	couldn't I be longjumping? couldn't you be longjumping? couldn't he be longjumping? couldn't we be longjumping? couldn't you be longjumping? couldn't they be longjumping?
Perfect	V-ing perfect
couldn't I have longjumped? couldn't you have longjumped? couldn't he have longjumped? couldn't we have longjumped? couldn't you have longjumped? couldn't they have longjumped?	couldn't I have been longjumping? couldn't you have been longjumping? couldn't he have been longjumping? couldn't we have been longjumping? couldn't you have been longjumping? couldn't they have been longjumping?