English verb conjugation
MUST STET

Regular verb: stet - stetted - stetted

Affirmation

Simple form	V-ing form
I must stet you must stet he must stet we must stet you must stet they must stet	I must be stetting you must be stetting he must be stetting we must be stetting you must be stetting they must be stetting
Perfect	V-ing perfect
I must have stetted you must have stetted he must have stetted we must have stetted you must have stetted they must have stetted	I must have been stetting you must have been stetting he must have been stetting we must have been stetting you must have been stetting they must have been stetting

Negation

Simple form	V-ing form
I mustn't stet you mustn't stet he mustn't stet we mustn't stet you mustn't stet they mustn't stet	I mustn't be stetting you mustn't be stetting he mustn't be stetting we mustn't be stetting you mustn't be stetting they mustn't be stetting
Perfect	V-ing perfect
I mustn't have stetted you mustn't have stetted he mustn't have stetted we mustn't have stetted you mustn't have stetted they mustn't have stetted	I mustn't have been stetting you mustn't have been stetting he mustn't have been stetting we mustn't have been stetting you mustn't have been stetting they mustn't have been stetting

Interrogative form

Simple form	V-ing form
must I stet? must you stet? must he stet? must we stet? must you stet? must they stet?	must I be stetting? must you be stetting? must he be stetting? must we be stetting? must you be stetting? must they be stetting?
Perfect	V-ing perfect
must I have stetted? must you have stetted? must he have stetted? must we have stetted? must you have stetted? must they have stetted?	must I have been stetting? must you have been stetting? must he have been stetting? must we have been stetting? must you have been stetting? must they have been stetting?

Interro-negative form

Simple form	V-ing form
mustn't I stet? mustn't you stet? mustn't he stet? mustn't we stet? mustn't you stet? mustn't they stet?	mustn't I be stetting? mustn't you be stetting? mustn't he be stetting? mustn't we be stetting? mustn't you be stetting? mustn't they be stetting?
Perfect	V-ing perfect
mustn't I have stetted? mustn't you have stetted? mustn't he have stetted? mustn't we have stetted? mustn't you have stetted? mustn't they have stetted?	mustn't I have been stetting? mustn't you have been stetting? mustn't he have been stetting? mustn't we have been stetting? mustn't you have been stetting? mustn't they have been stetting?