English verb conjugation
COULD PULL

Regular verb: pull - pulled - pulled

Affirmation

Simple form	V-ing form
I could pull you could pull he could pull we could pull you could pull they could pull	I could be pulling you could be pulling he could be pulling we could be pulling you could be pulling they could be pulling
Perfect	V-ing perfect
I could have pulled you could have pulled he could have pulled we could have pulled you could have pulled they could have pulled	I could have been pulling you could have been pulling he could have been pulling we could have been pulling you could have been pulling they could have been pulling

Negation

Simple form	V-ing form
I couldn't pull you couldn't pull he couldn't pull we couldn't pull you couldn't pull they couldn't pull	I couldn't be pulling you couldn't be pulling he couldn't be pulling we couldn't be pulling you couldn't be pulling they couldn't be pulling
Perfect	V-ing perfect
I couldn't have pulled you couldn't have pulled he couldn't have pulled we couldn't have pulled you couldn't have pulled they couldn't have pulled	I couldn't have been pulling you couldn't have been pulling he couldn't have been pulling we couldn't have been pulling you couldn't have been pulling they couldn't have been pulling

Interrogative form

Simple form	V-ing form
could I pull? could you pull? could he pull? could we pull? could you pull? could they pull?	could I be pulling? could you be pulling? could he be pulling? could we be pulling? could you be pulling? could they be pulling?
Perfect	V-ing perfect
could I have pulled? could you have pulled? could he have pulled? could we have pulled? could you have pulled? could they have pulled?	could I have been pulling? could you have been pulling? could he have been pulling? could we have been pulling? could you have been pulling? could they have been pulling?

Interro-negative form

Simple form	V-ing form
couldn't I pull? couldn't you pull? couldn't he pull? couldn't we pull? couldn't you pull? couldn't they pull?	couldn't I be pulling? couldn't you be pulling? couldn't he be pulling? couldn't we be pulling? couldn't you be pulling? couldn't they be pulling?
Perfect	V-ing perfect
couldn't I have pulled? couldn't you have pulled? couldn't he have pulled? couldn't we have pulled? couldn't you have pulled? couldn't they have pulled?	couldn't I have been pulling? couldn't you have been pulling? couldn't he have been pulling? couldn't we have been pulling? couldn't you have been pulling? couldn't they have been pulling?