English verb conjugation
MUST SPOUT

Regular verb: spout - spouted - spouted

Affirmation

Simple form	V-ing form
I must spout you must spout he must spout we must spout you must spout they must spout	I must be spouting you must be spouting he must be spouting we must be spouting you must be spouting they must be spouting
Perfect	V-ing perfect
I must have spouted you must have spouted he must have spouted we must have spouted you must have spouted they must have spouted	I must have been spouting you must have been spouting he must have been spouting we must have been spouting you must have been spouting they must have been spouting

Negation

Simple form	V-ing form
I mustn't spout you mustn't spout he mustn't spout we mustn't spout you mustn't spout they mustn't spout	I mustn't be spouting you mustn't be spouting he mustn't be spouting we mustn't be spouting you mustn't be spouting they mustn't be spouting
Perfect	V-ing perfect
I mustn't have spouted you mustn't have spouted he mustn't have spouted we mustn't have spouted you mustn't have spouted they mustn't have spouted	I mustn't have been spouting you mustn't have been spouting he mustn't have been spouting we mustn't have been spouting you mustn't have been spouting they mustn't have been spouting

Interrogative form

Simple form	V-ing form
must I spout? must you spout? must he spout? must we spout? must you spout? must they spout?	must I be spouting? must you be spouting? must he be spouting? must we be spouting? must you be spouting? must they be spouting?
Perfect	V-ing perfect
must I have spouted? must you have spouted? must he have spouted? must we have spouted? must you have spouted? must they have spouted?	must I have been spouting? must you have been spouting? must he have been spouting? must we have been spouting? must you have been spouting? must they have been spouting?

Interro-negative form

Simple form	V-ing form
mustn't I spout? mustn't you spout? mustn't he spout? mustn't we spout? mustn't you spout? mustn't they spout?	mustn't I be spouting? mustn't you be spouting? mustn't he be spouting? mustn't we be spouting? mustn't you be spouting? mustn't they be spouting?
Perfect	V-ing perfect
mustn't I have spouted? mustn't you have spouted? mustn't he have spouted? mustn't we have spouted? mustn't you have spouted? mustn't they have spouted?	mustn't I have been spouting? mustn't you have been spouting? mustn't he have been spouting? mustn't we have been spouting? mustn't you have been spouting? mustn't they have been spouting?