English verb conjugation
MUST WHALE

Regular verb: whale - whaled - whaled

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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