English verb conjugation
MUST WAIL

Regular verb: wail - wailed - wailed

Affirmation

Simple form	V-ing form
I must wail you must wail he must wail we must wail you must wail they must wail	I must be wailing you must be wailing he must be wailing we must be wailing you must be wailing they must be wailing
Perfect	V-ing perfect
I must have wailed you must have wailed he must have wailed we must have wailed you must have wailed they must have wailed	I must have been wailing you must have been wailing he must have been wailing we must have been wailing you must have been wailing they must have been wailing

Negation

Simple form	V-ing form
I must not wail you must not wail he must not wail we must not wail you must not wail they must not wail	I must not be wailing you must not be wailing he must not be wailing we must not be wailing you must not be wailing they must not be wailing
Perfect	V-ing perfect
I must not have wailed you must not have wailed he must not have wailed we must not have wailed you must not have wailed they must not have wailed	I must not have been wailing you must not have been wailing he must not have been wailing we must not have been wailing you must not have been wailing they must not have been wailing

Interrogative form

Simple form	V-ing form
must I wail? must you wail? must he wail? must we wail? must you wail? must they wail?	must I be wailing? must you be wailing? must he be wailing? must we be wailing? must you be wailing? must they be wailing?
Perfect	V-ing perfect
must I have wailed? must you have wailed? must he have wailed? must we have wailed? must you have wailed? must they have wailed?	must I have been wailing? must you have been wailing? must he have been wailing? must we have been wailing? must you have been wailing? must they have been wailing?

Interro-negative form

Simple form	V-ing form
must I not wail? must you not wail? must he not wail? must we not wail? must you not wail? must they not wail?	must I not be wailing? must you not be wailing? must he not be wailing? must we not be wailing? must you not be wailing? must they not be wailing?
Perfect	V-ing perfect
must I not have wailed? must you not have wailed? must he not have wailed? must we not have wailed? must you not have wailed? must they not have wailed?	must I not have been wailing? must you not have been wailing? must he not have been wailing? must we not have been wailing? must you not have been wailing? must they not have been wailing?