English verb conjugation
MUST GRAFT

Regular verb: graft - grafted - grafted

Affirmation

Simple form	V-ing form
I must graft you must graft she must graft we must graft you must graft they must graft	I must be grafting you must be grafting she 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 she 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 she 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 she 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 she 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 she 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 she 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 she graft? must we graft? must you graft? must they graft?	must I be grafting? must you be grafting? must she 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 she 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 she 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 she 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 she 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 she 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 she have been grafting? mustn't we have been grafting? mustn't you have been grafting? mustn't they have been grafting?