English verb conjugation
MUST WASSAIL

Regular verb: wassail - wassailed - wassailed

Affirmation

Simple form	V-ing form
I must wassail you must wassail he must wassail we must wassail you must wassail they must wassail	I must be wassailing you must be wassailing he must be wassailing we must be wassailing you must be wassailing they must be wassailing
Perfect	V-ing perfect
I must have wassailed you must have wassailed he must have wassailed we must have wassailed you must have wassailed they must have wassailed	I must have been wassailing you must have been wassailing he must have been wassailing we must have been wassailing you must have been wassailing they must have been wassailing

Negation

Simple form	V-ing form
I must not wassail you must not wassail he must not wassail we must not wassail you must not wassail they must not wassail	I must not be wassailing you must not be wassailing he must not be wassailing we must not be wassailing you must not be wassailing they must not be wassailing
Perfect	V-ing perfect
I must not have wassailed you must not have wassailed he must not have wassailed we must not have wassailed you must not have wassailed they must not have wassailed	I must not have been wassailing you must not have been wassailing he must not have been wassailing we must not have been wassailing you must not have been wassailing they must not have been wassailing

Interrogative form

Simple form	V-ing form
must I wassail? must you wassail? must he wassail? must we wassail? must you wassail? must they wassail?	must I be wassailing? must you be wassailing? must he be wassailing? must we be wassailing? must you be wassailing? must they be wassailing?
Perfect	V-ing perfect
must I have wassailed? must you have wassailed? must he have wassailed? must we have wassailed? must you have wassailed? must they have wassailed?	must I have been wassailing? must you have been wassailing? must he have been wassailing? must we have been wassailing? must you have been wassailing? must they have been wassailing?

Interro-negative form

Simple form	V-ing form
must I not wassail? must you not wassail? must he not wassail? must we not wassail? must you not wassail? must they not wassail?	must I not be wassailing? must you not be wassailing? must he not be wassailing? must we not be wassailing? must you not be wassailing? must they not be wassailing?
Perfect	V-ing perfect
must I not have wassailed? must you not have wassailed? must he not have wassailed? must we not have wassailed? must you not have wassailed? must they not have wassailed?	must I not have been wassailing? must you not have been wassailing? must he not have been wassailing? must we not have been wassailing? must you not have been wassailing? must they not have been wassailing?