English verb conjugation
CAN VET

Regular verb: vet - vetted - vetted

Affirmation

Simple form	V-ing form
I can vet you can vet he can vet we can vet you can vet they can vet	I can be vetting you can be vetting he can be vetting we can be vetting you can be vetting they can be vetting
Perfect	V-ing perfect
I can have vetted you can have vetted he can have vetted we can have vetted you can have vetted they can have vetted	I can have been vetting you can have been vetting he can have been vetting we can have been vetting you can have been vetting they can have been vetting

Negation

Simple form	V-ing form
I cannot vet you cannot vet he cannot vet we cannot vet you cannot vet they cannot vet	I cannot be vetting you cannot be vetting he cannot be vetting we cannot be vetting you cannot be vetting they cannot be vetting
Perfect	V-ing perfect
I cannot have vetted you cannot have vetted he cannot have vetted we cannot have vetted you cannot have vetted they cannot have vetted	I cannot have been vetting you cannot have been vetting he cannot have been vetting we cannot have been vetting you cannot have been vetting they cannot have been vetting

Interrogative form

Simple form	V-ing form
can I vet? can you vet? can he vet? can we vet? can you vet? can they vet?	can I be vetting? can you be vetting? can he be vetting? can we be vetting? can you be vetting? can they be vetting?
Perfect	V-ing perfect
can I have vetted? can you have vetted? can he have vetted? can we have vetted? can you have vetted? can they have vetted?	can I have been vetting? can you have been vetting? can he have been vetting? can we have been vetting? can you have been vetting? can they have been vetting?

Interro-negative form

Simple form	V-ing form
can I not vet? can you not vet? can he not vet? can we not vet? can you not vet? can they not vet?	can I not be vetting? can you not be vetting? can he not be vetting? can we not be vetting? can you not be vetting? can they not be vetting?
Perfect	V-ing perfect
can I not have vetted? can you not have vetted? can he not have vetted? can we not have vetted? can you not have vetted? can they not have vetted?	can I not have been vetting? can you not have been vetting? can he not have been vetting? can we not have been vetting? can you not have been vetting? can they not have been vetting?