English verb conjugation
MUST IMPALE

Regular verb: impale - impaled - impaled

Affirmation

Simple form	V-ing form
I must impale you must impale he must impale we must impale you must impale they must impale	I must be impaling you must be impaling he must be impaling we must be impaling you must be impaling they must be impaling
Perfect	V-ing perfect
I must have impaled you must have impaled he must have impaled we must have impaled you must have impaled they must have impaled	I must have been impaling you must have been impaling he must have been impaling we must have been impaling you must have been impaling they must have been impaling

Negation

Simple form	V-ing form
I must not impale you must not impale he must not impale we must not impale you must not impale they must not impale	I must not be impaling you must not be impaling he must not be impaling we must not be impaling you must not be impaling they must not be impaling
Perfect	V-ing perfect
I must not have impaled you must not have impaled he must not have impaled we must not have impaled you must not have impaled they must not have impaled	I must not have been impaling you must not have been impaling he must not have been impaling we must not have been impaling you must not have been impaling they must not have been impaling

Interrogative form

Simple form	V-ing form
must I impale? must you impale? must he impale? must we impale? must you impale? must they impale?	must I be impaling? must you be impaling? must he be impaling? must we be impaling? must you be impaling? must they be impaling?
Perfect	V-ing perfect
must I have impaled? must you have impaled? must he have impaled? must we have impaled? must you have impaled? must they have impaled?	must I have been impaling? must you have been impaling? must he have been impaling? must we have been impaling? must you have been impaling? must they have been impaling?

Interro-negative form

Simple form	V-ing form
must I not impale? must you not impale? must he not impale? must we not impale? must you not impale? must they not impale?	must I not be impaling? must you not be impaling? must he not be impaling? must we not be impaling? must you not be impaling? must they not be impaling?
Perfect	V-ing perfect
must I not have impaled? must you not have impaled? must he not have impaled? must we not have impaled? must you not have impaled? must they not have impaled?	must I not have been impaling? must you not have been impaling? must he not have been impaling? must we not have been impaling? must you not have been impaling? must they not have been impaling?