English verb conjugation
MUST TRAVAIL

Regular verb: travail - travailed - travailed

Affirmation

Simple form	V-ing form
I must travail you must travail he must travail we must travail you must travail they must travail	I must be travailing you must be travailing he must be travailing we must be travailing you must be travailing they must be travailing
Perfect	V-ing perfect
I must have travailed you must have travailed he must have travailed we must have travailed you must have travailed they must have travailed	I must have been travailing you must have been travailing he must have been travailing we must have been travailing you must have been travailing they must have been travailing

Negation

Simple form	V-ing form
I mustn't travail you mustn't travail he mustn't travail we mustn't travail you mustn't travail they mustn't travail	I mustn't be travailing you mustn't be travailing he mustn't be travailing we mustn't be travailing you mustn't be travailing they mustn't be travailing
Perfect	V-ing perfect
I mustn't have travailed you mustn't have travailed he mustn't have travailed we mustn't have travailed you mustn't have travailed they mustn't have travailed	I mustn't have been travailing you mustn't have been travailing he mustn't have been travailing we mustn't have been travailing you mustn't have been travailing they mustn't have been travailing

Interrogative form

Simple form	V-ing form
must I travail? must you travail? must he travail? must we travail? must you travail? must they travail?	must I be travailing? must you be travailing? must he be travailing? must we be travailing? must you be travailing? must they be travailing?
Perfect	V-ing perfect
must I have travailed? must you have travailed? must he have travailed? must we have travailed? must you have travailed? must they have travailed?	must I have been travailing? must you have been travailing? must he have been travailing? must we have been travailing? must you have been travailing? must they have been travailing?

Interro-negative form

Simple form	V-ing form
mustn't I travail? mustn't you travail? mustn't he travail? mustn't we travail? mustn't you travail? mustn't they travail?	mustn't I be travailing? mustn't you be travailing? mustn't he be travailing? mustn't we be travailing? mustn't you be travailing? mustn't they be travailing?
Perfect	V-ing perfect
mustn't I have travailed? mustn't you have travailed? mustn't he have travailed? mustn't we have travailed? mustn't you have travailed? mustn't they have travailed?	mustn't I have been travailing? mustn't you have been travailing? mustn't he have been travailing? mustn't we have been travailing? mustn't you have been travailing? mustn't they have been travailing?