English verb conjugation
CAN VAT

Regular verb: vat - vatted - vatted

Affirmation

Simple form	V-ing form
I can vat you can vat he can vat we can vat you can vat they can vat	I can be vatting you can be vatting he can be vatting we can be vatting you can be vatting they can be vatting
Perfect	V-ing perfect
I can have vatted you can have vatted he can have vatted we can have vatted you can have vatted they can have vatted	I can have been vatting you can have been vatting he can have been vatting we can have been vatting you can have been vatting they can have been vatting

Negation

Simple form	V-ing form
I cannot vat you cannot vat he cannot vat we cannot vat you cannot vat they cannot vat	I cannot be vatting you cannot be vatting he cannot be vatting we cannot be vatting you cannot be vatting they cannot be vatting
Perfect	V-ing perfect
I cannot have vatted you cannot have vatted he cannot have vatted we cannot have vatted you cannot have vatted they cannot have vatted	I cannot have been vatting you cannot have been vatting he cannot have been vatting we cannot have been vatting you cannot have been vatting they cannot have been vatting

Interrogative form

Simple form	V-ing form
can I vat? can you vat? can he vat? can we vat? can you vat? can they vat?	can I be vatting? can you be vatting? can he be vatting? can we be vatting? can you be vatting? can they be vatting?
Perfect	V-ing perfect
can I have vatted? can you have vatted? can he have vatted? can we have vatted? can you have vatted? can they have vatted?	can I have been vatting? can you have been vatting? can he have been vatting? can we have been vatting? can you have been vatting? can they have been vatting?

Interro-negative form

Simple form	V-ing form
can I not vat? can you not vat? can he not vat? can we not vat? can you not vat? can they not vat?	can I not be vatting? can you not be vatting? can he not be vatting? can we not be vatting? can you not be vatting? can they not be vatting?
Perfect	V-ing perfect
can I not have vatted? can you not have vatted? can he not have vatted? can we not have vatted? can you not have vatted? can they not have vatted?	can I not have been vatting? can you not have been vatting? can he not have been vatting? can we not have been vatting? can you not have been vatting? can they not have been vatting?