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 mustn't wassail you mustn't wassail he mustn't wassail we mustn't wassail you mustn't wassail they mustn't wassail	I mustn't be wassailing you mustn't be wassailing he mustn't be wassailing we mustn't be wassailing you mustn't be wassailing they mustn't be wassailing
Perfect	V-ing perfect
I mustn't have wassailed you mustn't have wassailed he mustn't have wassailed we mustn't have wassailed you mustn't have wassailed they mustn't have wassailed	I mustn't have been wassailing you mustn't have been wassailing he mustn't have been wassailing we mustn't have been wassailing you mustn't have been wassailing they mustn't 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
mustn't I wassail? mustn't you wassail? mustn't he wassail? mustn't we wassail? mustn't you wassail? mustn't they wassail?	mustn't I be wassailing? mustn't you be wassailing? mustn't he be wassailing? mustn't we be wassailing? mustn't you be wassailing? mustn't they be wassailing?
Perfect	V-ing perfect
mustn't I have wassailed? mustn't you have wassailed? mustn't he have wassailed? mustn't we have wassailed? mustn't you have wassailed? mustn't they have wassailed?	mustn't I have been wassailing? mustn't you have been wassailing? mustn't he have been wassailing? mustn't we have been wassailing? mustn't you have been wassailing? mustn't they have been wassailing?