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 can't vat you can't vat he can't vat we can't vat you can't vat they can't vat	I can't be vatting you can't be vatting he can't be vatting we can't be vatting you can't be vatting they can't be vatting
Perfect	V-ing perfect
I can't have vatted you can't have vatted he can't have vatted we can't have vatted you can't have vatted they can't have vatted	I can't have been vatting you can't have been vatting he can't have been vatting we can't have been vatting you can't have been vatting they can't 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't I vat? can't you vat? can't he vat? can't we vat? can't you vat? can't they vat?	can't I be vatting? can't you be vatting? can't he be vatting? can't we be vatting? can't you be vatting? can't they be vatting?
Perfect	V-ing perfect
can't I have vatted? can't you have vatted? can't he have vatted? can't we have vatted? can't you have vatted? can't they have vatted?	can't I have been vatting? can't you have been vatting? can't he have been vatting? can't we have been vatting? can't you have been vatting? can't they have been vatting?