English verb conjugation
MUST RIFT

Regular verb: rift - rifted - rifted

Affirmation

Simple form	V-ing form
I must rift you must rift he must rift we must rift you must rift they must rift	I must be rifting you must be rifting he must be rifting we must be rifting you must be rifting they must be rifting
Perfect	V-ing perfect
I must have rifted you must have rifted he must have rifted we must have rifted you must have rifted they must have rifted	I must have been rifting you must have been rifting he must have been rifting we must have been rifting you must have been rifting they must have been rifting

Negation

Simple form	V-ing form
I mustn't rift you mustn't rift he mustn't rift we mustn't rift you mustn't rift they mustn't rift	I mustn't be rifting you mustn't be rifting he mustn't be rifting we mustn't be rifting you mustn't be rifting they mustn't be rifting
Perfect	V-ing perfect
I mustn't have rifted you mustn't have rifted he mustn't have rifted we mustn't have rifted you mustn't have rifted they mustn't have rifted	I mustn't have been rifting you mustn't have been rifting he mustn't have been rifting we mustn't have been rifting you mustn't have been rifting they mustn't have been rifting

Interrogative form

Simple form	V-ing form
must I rift? must you rift? must he rift? must we rift? must you rift? must they rift?	must I be rifting? must you be rifting? must he be rifting? must we be rifting? must you be rifting? must they be rifting?
Perfect	V-ing perfect
must I have rifted? must you have rifted? must he have rifted? must we have rifted? must you have rifted? must they have rifted?	must I have been rifting? must you have been rifting? must he have been rifting? must we have been rifting? must you have been rifting? must they have been rifting?

Interro-negative form

Simple form	V-ing form
mustn't I rift? mustn't you rift? mustn't he rift? mustn't we rift? mustn't you rift? mustn't they rift?	mustn't I be rifting? mustn't you be rifting? mustn't he be rifting? mustn't we be rifting? mustn't you be rifting? mustn't they be rifting?
Perfect	V-ing perfect
mustn't I have rifted? mustn't you have rifted? mustn't he have rifted? mustn't we have rifted? mustn't you have rifted? mustn't they have rifted?	mustn't I have been rifting? mustn't you have been rifting? mustn't he have been rifting? mustn't we have been rifting? mustn't you have been rifting? mustn't they have been rifting?