English verb conjugation
MUST VOMIT

Regular verb: vomit - vomited - vomited

Affirmation

Simple form	V-ing form
I must vomit you must vomit he must vomit we must vomit you must vomit they must vomit	I must be vomiting you must be vomiting he must be vomiting we must be vomiting you must be vomiting they must be vomiting
Perfect	V-ing perfect
I must have vomited you must have vomited he must have vomited we must have vomited you must have vomited they must have vomited	I must have been vomiting you must have been vomiting he must have been vomiting we must have been vomiting you must have been vomiting they must have been vomiting

Negation

Simple form	V-ing form
I mustn't vomit you mustn't vomit he mustn't vomit we mustn't vomit you mustn't vomit they mustn't vomit	I mustn't be vomiting you mustn't be vomiting he mustn't be vomiting we mustn't be vomiting you mustn't be vomiting they mustn't be vomiting
Perfect	V-ing perfect
I mustn't have vomited you mustn't have vomited he mustn't have vomited we mustn't have vomited you mustn't have vomited they mustn't have vomited	I mustn't have been vomiting you mustn't have been vomiting he mustn't have been vomiting we mustn't have been vomiting you mustn't have been vomiting they mustn't have been vomiting

Interrogative form

Simple form	V-ing form
must I vomit? must you vomit? must he vomit? must we vomit? must you vomit? must they vomit?	must I be vomiting? must you be vomiting? must he be vomiting? must we be vomiting? must you be vomiting? must they be vomiting?
Perfect	V-ing perfect
must I have vomited? must you have vomited? must he have vomited? must we have vomited? must you have vomited? must they have vomited?	must I have been vomiting? must you have been vomiting? must he have been vomiting? must we have been vomiting? must you have been vomiting? must they have been vomiting?

Interro-negative form

Simple form	V-ing form
mustn't I vomit? mustn't you vomit? mustn't he vomit? mustn't we vomit? mustn't you vomit? mustn't they vomit?	mustn't I be vomiting? mustn't you be vomiting? mustn't he be vomiting? mustn't we be vomiting? mustn't you be vomiting? mustn't they be vomiting?
Perfect	V-ing perfect
mustn't I have vomited? mustn't you have vomited? mustn't he have vomited? mustn't we have vomited? mustn't you have vomited? mustn't they have vomited?	mustn't I have been vomiting? mustn't you have been vomiting? mustn't he have been vomiting? mustn't we have been vomiting? mustn't you have been vomiting? mustn't they have been vomiting?