English verb conjugation
MUST SMOKE

Regular verb: smoke - smoked - smoked

Affirmation

Simple form	V-ing form
I must smoke you must smoke he must smoke we must smoke you must smoke they must smoke	I must be smoking you must be smoking he must be smoking we must be smoking you must be smoking they must be smoking
Perfect	V-ing perfect
I must have smoked you must have smoked he must have smoked we must have smoked you must have smoked they must have smoked	I must have been smoking you must have been smoking he must have been smoking we must have been smoking you must have been smoking they must have been smoking

Negation

Simple form	V-ing form
I mustn't smoke you mustn't smoke he mustn't smoke we mustn't smoke you mustn't smoke they mustn't smoke	I mustn't be smoking you mustn't be smoking he mustn't be smoking we mustn't be smoking you mustn't be smoking they mustn't be smoking
Perfect	V-ing perfect
I mustn't have smoked you mustn't have smoked he mustn't have smoked we mustn't have smoked you mustn't have smoked they mustn't have smoked	I mustn't have been smoking you mustn't have been smoking he mustn't have been smoking we mustn't have been smoking you mustn't have been smoking they mustn't have been smoking

Interrogative form

Simple form	V-ing form
must I smoke? must you smoke? must he smoke? must we smoke? must you smoke? must they smoke?	must I be smoking? must you be smoking? must he be smoking? must we be smoking? must you be smoking? must they be smoking?
Perfect	V-ing perfect
must I have smoked? must you have smoked? must he have smoked? must we have smoked? must you have smoked? must they have smoked?	must I have been smoking? must you have been smoking? must he have been smoking? must we have been smoking? must you have been smoking? must they have been smoking?

Interro-negative form

Simple form	V-ing form
mustn't I smoke? mustn't you smoke? mustn't he smoke? mustn't we smoke? mustn't you smoke? mustn't they smoke?	mustn't I be smoking? mustn't you be smoking? mustn't he be smoking? mustn't we be smoking? mustn't you be smoking? mustn't they be smoking?
Perfect	V-ing perfect
mustn't I have smoked? mustn't you have smoked? mustn't he have smoked? mustn't we have smoked? mustn't you have smoked? mustn't they have smoked?	mustn't I have been smoking? mustn't you have been smoking? mustn't he have been smoking? mustn't we have been smoking? mustn't you have been smoking? mustn't they have been smoking?