English verb conjugation
CAN WAG

Regular verb: wag - wagged - wagged

Affirmation

Simple form	V-ing form
I can wag you can wag she can wag we can wag you can wag they can wag	I can be wagging you can be wagging she 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 she 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 she 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 can't wag you can't wag she can't wag we can't wag you can't wag they can't wag	I can't be wagging you can't be wagging she can't be wagging we can't be wagging you can't be wagging they can't be wagging
Perfect	V-ing perfect
I can't have wagged you can't have wagged she can't have wagged we can't have wagged you can't have wagged they can't have wagged	I can't have been wagging you can't have been wagging she can't have been wagging we can't have been wagging you can't have been wagging they can't have been wagging

Interrogative form

Simple form	V-ing form
can I wag? can you wag? can she wag? can we wag? can you wag? can they wag?	can I be wagging? can you be wagging? can she 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 she 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 she 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't I wag? can't you wag? can't she wag? can't we wag? can't you wag? can't they wag?	can't I be wagging? can't you be wagging? can't she be wagging? can't we be wagging? can't you be wagging? can't they be wagging?
Perfect	V-ing perfect
can't I have wagged? can't you have wagged? can't she have wagged? can't we have wagged? can't you have wagged? can't they have wagged?	can't I have been wagging? can't you have been wagging? can't she have been wagging? can't we have been wagging? can't you have been wagging? can't they have been wagging?