English verb conjugation
COULD PRUNE

Regular verb: prune - pruned - pruned

Affirmation

Simple form	V-ing form
I could prune you could prune he could prune we could prune you could prune they could prune	I could be pruning you could be pruning he could be pruning we could be pruning you could be pruning they could be pruning
Perfect	V-ing perfect
I could have pruned you could have pruned he could have pruned we could have pruned you could have pruned they could have pruned	I could have been pruning you could have been pruning he could have been pruning we could have been pruning you could have been pruning they could have been pruning

Negation

Simple form	V-ing form
I could not prune you could not prune he could not prune we could not prune you could not prune they could not prune	I could not be pruning you could not be pruning he could not be pruning we could not be pruning you could not be pruning they could not be pruning
Perfect	V-ing perfect
I could not have pruned you could not have pruned he could not have pruned we could not have pruned you could not have pruned they could not have pruned	I could not have been pruning you could not have been pruning he could not have been pruning we could not have been pruning you could not have been pruning they could not have been pruning

Interrogative form

Simple form	V-ing form
could I prune? could you prune? could he prune? could we prune? could you prune? could they prune?	could I be pruning? could you be pruning? could he be pruning? could we be pruning? could you be pruning? could they be pruning?
Perfect	V-ing perfect
could I have pruned? could you have pruned? could he have pruned? could we have pruned? could you have pruned? could they have pruned?	could I have been pruning? could you have been pruning? could he have been pruning? could we have been pruning? could you have been pruning? could they have been pruning?

Interro-negative form

Simple form	V-ing form
could I not prune? could you not prune? could he not prune? could we not prune? could you not prune? could they not prune?	could I not be pruning? could you not be pruning? could he not be pruning? could we not be pruning? could you not be pruning? could they not be pruning?
Perfect	V-ing perfect
could I not have pruned? could you not have pruned? could he not have pruned? could we not have pruned? could you not have pruned? could they not have pruned?	could I not have been pruning? could you not have been pruning? could he not have been pruning? could we not have been pruning? could you not have been pruning? could they not have been pruning?