English verb conjugation
CAN WAG

Regular verb: wag - wagged - wagged

Affirmation

Simple form	V-ing form
I can wag you can wag he can wag we can wag you can wag they can wag	I can be wagging you can be wagging he can be wagging we can be wagging you can be wagging they can be wagging
Perfect	V-ing perfect
I can have wagged you can have wagged he can have wagged we can have wagged you can have wagged they can have wagged	I can have been wagging you can have been wagging he can have been wagging we can have been wagging you can have been wagging they can have been wagging

Negation

Simple form	V-ing form
I cannot wag you cannot wag he cannot wag we cannot wag you cannot wag they cannot wag	I cannot be wagging you cannot be wagging he cannot be wagging we cannot be wagging you cannot be wagging they cannot be wagging
Perfect	V-ing perfect
I cannot have wagged you cannot have wagged he cannot have wagged we cannot have wagged you cannot have wagged they cannot have wagged	I cannot have been wagging you cannot have been wagging he cannot have been wagging we cannot have been wagging you cannot have been wagging they cannot have been wagging

Interrogative form

Simple form	V-ing form
can I wag? can you wag? can he wag? can we wag? can you wag? can they wag?	can I be wagging? can you be wagging? can he be wagging? can we be wagging? can you be wagging? can they be wagging?
Perfect	V-ing perfect
can I have wagged? can you have wagged? can he have wagged? can we have wagged? can you have wagged? can they have wagged?	can I have been wagging? can you have been wagging? can he have been wagging? can we have been wagging? can you have been wagging? can they have been wagging?

Interro-negative form

Simple form	V-ing form
can I not wag? can you not wag? can he not wag? can we not wag? can you not wag? can they not wag?	can I not be wagging? can you not be wagging? can he not be wagging? can we not be wagging? can you not be wagging? can they not be wagging?
Perfect	V-ing perfect
can I not have wagged? can you not have wagged? can he not have wagged? can we not have wagged? can you not have wagged? can they not have wagged?	can I not have been wagging? can you not have been wagging? can he not have been wagging? can we not have been wagging? can you not have been wagging? can they not have been wagging?