English verb conjugation
MUST TUFT

Regular verb: tuft - tufted - tufted

Affirmation

Simple form	V-ing form
I must tuft you must tuft he must tuft we must tuft you must tuft they must tuft	I must be tufting you must be tufting he must be tufting we must be tufting you must be tufting they must be tufting
Perfect	V-ing perfect
I must have tufted you must have tufted he must have tufted we must have tufted you must have tufted they must have tufted	I must have been tufting you must have been tufting he must have been tufting we must have been tufting you must have been tufting they must have been tufting

Negation

Simple form	V-ing form
I mustn't tuft you mustn't tuft he mustn't tuft we mustn't tuft you mustn't tuft they mustn't tuft	I mustn't be tufting you mustn't be tufting he mustn't be tufting we mustn't be tufting you mustn't be tufting they mustn't be tufting
Perfect	V-ing perfect
I mustn't have tufted you mustn't have tufted he mustn't have tufted we mustn't have tufted you mustn't have tufted they mustn't have tufted	I mustn't have been tufting you mustn't have been tufting he mustn't have been tufting we mustn't have been tufting you mustn't have been tufting they mustn't have been tufting

Interrogative form

Simple form	V-ing form
must I tuft? must you tuft? must he tuft? must we tuft? must you tuft? must they tuft?	must I be tufting? must you be tufting? must he be tufting? must we be tufting? must you be tufting? must they be tufting?
Perfect	V-ing perfect
must I have tufted? must you have tufted? must he have tufted? must we have tufted? must you have tufted? must they have tufted?	must I have been tufting? must you have been tufting? must he have been tufting? must we have been tufting? must you have been tufting? must they have been tufting?

Interro-negative form

Simple form	V-ing form
mustn't I tuft? mustn't you tuft? mustn't he tuft? mustn't we tuft? mustn't you tuft? mustn't they tuft?	mustn't I be tufting? mustn't you be tufting? mustn't he be tufting? mustn't we be tufting? mustn't you be tufting? mustn't they be tufting?
Perfect	V-ing perfect
mustn't I have tufted? mustn't you have tufted? mustn't he have tufted? mustn't we have tufted? mustn't you have tufted? mustn't they have tufted?	mustn't I have been tufting? mustn't you have been tufting? mustn't he have been tufting? mustn't we have been tufting? mustn't you have been tufting? mustn't they have been tufting?