English verb conjugation
MUST INTERGRAFT

Regular verb: intergraft - intergrafted - intergrafted

Affirmation

Simple form	V-ing form
I must intergraft you must intergraft he must intergraft we must intergraft you must intergraft they must intergraft	I must be intergrafting you must be intergrafting he must be intergrafting we must be intergrafting you must be intergrafting they must be intergrafting
Perfect	V-ing perfect
I must have intergrafted you must have intergrafted he must have intergrafted we must have intergrafted you must have intergrafted they must have intergrafted	I must have been intergrafting you must have been intergrafting he must have been intergrafting we must have been intergrafting you must have been intergrafting they must have been intergrafting

Negation

Simple form	V-ing form
I mustn't intergraft you mustn't intergraft he mustn't intergraft we mustn't intergraft you mustn't intergraft they mustn't intergraft	I mustn't be intergrafting you mustn't be intergrafting he mustn't be intergrafting we mustn't be intergrafting you mustn't be intergrafting they mustn't be intergrafting
Perfect	V-ing perfect
I mustn't have intergrafted you mustn't have intergrafted he mustn't have intergrafted we mustn't have intergrafted you mustn't have intergrafted they mustn't have intergrafted	I mustn't have been intergrafting you mustn't have been intergrafting he mustn't have been intergrafting we mustn't have been intergrafting you mustn't have been intergrafting they mustn't have been intergrafting

Interrogative form

Simple form	V-ing form
must I intergraft? must you intergraft? must he intergraft? must we intergraft? must you intergraft? must they intergraft?	must I be intergrafting? must you be intergrafting? must he be intergrafting? must we be intergrafting? must you be intergrafting? must they be intergrafting?
Perfect	V-ing perfect
must I have intergrafted? must you have intergrafted? must he have intergrafted? must we have intergrafted? must you have intergrafted? must they have intergrafted?	must I have been intergrafting? must you have been intergrafting? must he have been intergrafting? must we have been intergrafting? must you have been intergrafting? must they have been intergrafting?

Interro-negative form

Simple form	V-ing form
mustn't I intergraft? mustn't you intergraft? mustn't he intergraft? mustn't we intergraft? mustn't you intergraft? mustn't they intergraft?	mustn't I be intergrafting? mustn't you be intergrafting? mustn't he be intergrafting? mustn't we be intergrafting? mustn't you be intergrafting? mustn't they be intergrafting?
Perfect	V-ing perfect
mustn't I have intergrafted? mustn't you have intergrafted? mustn't he have intergrafted? mustn't we have intergrafted? mustn't you have intergrafted? mustn't they have intergrafted?	mustn't I have been intergrafting? mustn't you have been intergrafting? mustn't he have been intergrafting? mustn't we have been intergrafting? mustn't you have been intergrafting? mustn't they have been intergrafting?