English verb conjugation
MUST GRAFT

Regular verb: graft - grafted - grafted

Affirmation

Simple form	V-ing form
I must graft you must graft he must graft we must graft you must graft they must graft	I must be grafting you must be grafting he must be grafting we must be grafting you must be grafting they must be grafting
Perfect	V-ing perfect
I must have grafted you must have grafted he must have grafted we must have grafted you must have grafted they must have grafted	I must have been grafting you must have been grafting he must have been grafting we must have been grafting you must have been grafting they must have been grafting

Negation

Simple form	V-ing form
I mustn't graft you mustn't graft he mustn't graft we mustn't graft you mustn't graft they mustn't graft	I mustn't be grafting you mustn't be grafting he mustn't be grafting we mustn't be grafting you mustn't be grafting they mustn't be grafting
Perfect	V-ing perfect
I mustn't have grafted you mustn't have grafted he mustn't have grafted we mustn't have grafted you mustn't have grafted they mustn't have grafted	I mustn't have been grafting you mustn't have been grafting he mustn't have been grafting we mustn't have been grafting you mustn't have been grafting they mustn't have been grafting

Interrogative form

Simple form	V-ing form
must I graft? must you graft? must he graft? must we graft? must you graft? must they graft?	must I be grafting? must you be grafting? must he be grafting? must we be grafting? must you be grafting? must they be grafting?
Perfect	V-ing perfect
must I have grafted? must you have grafted? must he have grafted? must we have grafted? must you have grafted? must they have grafted?	must I have been grafting? must you have been grafting? must he have been grafting? must we have been grafting? must you have been grafting? must they have been grafting?

Interro-negative form

Simple form	V-ing form
mustn't I graft? mustn't you graft? mustn't he graft? mustn't we graft? mustn't you graft? mustn't they graft?	mustn't I be grafting? mustn't you be grafting? mustn't he be grafting? mustn't we be grafting? mustn't you be grafting? mustn't they be grafting?
Perfect	V-ing perfect
mustn't I have grafted? mustn't you have grafted? mustn't he have grafted? mustn't we have grafted? mustn't you have grafted? mustn't they have grafted?	mustn't I have been grafting? mustn't you have been grafting? mustn't he have been grafting? mustn't we have been grafting? mustn't you have been grafting? mustn't they have been grafting?