English verb conjugation
COULD WHALE

Regular verb: whale - whaled - whaled

Affirmation

Simple form	V-ing form
I could whale you could whale he could whale we could whale you could whale they could whale	I could be whaling you could be whaling he could be whaling we could be whaling you could be whaling they could be whaling
Perfect	V-ing perfect
I could have whaled you could have whaled he could have whaled we could have whaled you could have whaled they could have whaled	I could have been whaling you could have been whaling he could have been whaling we could have been whaling you could have been whaling they could have been whaling

Negation

Simple form	V-ing form
I could not whale you could not whale he could not whale we could not whale you could not whale they could not whale	I could not be whaling you could not be whaling he could not be whaling we could not be whaling you could not be whaling they could not be whaling
Perfect	V-ing perfect
I could not have whaled you could not have whaled he could not have whaled we could not have whaled you could not have whaled they could not have whaled	I could not have been whaling you could not have been whaling he could not have been whaling we could not have been whaling you could not have been whaling they could not have been whaling

Interrogative form

Simple form	V-ing form
could I whale? could you whale? could he whale? could we whale? could you whale? could they whale?	could I be whaling? could you be whaling? could he be whaling? could we be whaling? could you be whaling? could they be whaling?
Perfect	V-ing perfect
could I have whaled? could you have whaled? could he have whaled? could we have whaled? could you have whaled? could they have whaled?	could I have been whaling? could you have been whaling? could he have been whaling? could we have been whaling? could you have been whaling? could they have been whaling?

Interro-negative form

Simple form	V-ing form
could I not whale? could you not whale? could he not whale? could we not whale? could you not whale? could they not whale?	could I not be whaling? could you not be whaling? could he not be whaling? could we not be whaling? could you not be whaling? could they not be whaling?
Perfect	V-ing perfect
could I not have whaled? could you not have whaled? could he not have whaled? could we not have whaled? could you not have whaled? could they not have whaled?	could I not have been whaling? could you not have been whaling? could he not have been whaling? could we not have been whaling? could you not have been whaling? could they not have been whaling?