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