English verb conjugation
CAN VOMIT

Regular verb: vomit - vomited - vomited

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

Simple form	V-ing form
can I not vomit? can you not vomit? can he not vomit? can we not vomit? can you not vomit? can they not vomit?	can I not be vomiting? can you not be vomiting? can he not be vomiting? can we not be vomiting? can you not be vomiting? can they not be vomiting?
Perfect	V-ing perfect
can I not have vomited? can you not have vomited? can he not have vomited? can we not have vomited? can you not have vomited? can they not have vomited?	can I not have been vomiting? can you not have been vomiting? can he not have been vomiting? can we not have been vomiting? can you not have been vomiting? can they not have been vomiting?