English verb conjugation
CAN TAG

Regular verb: tag - tagged - tagged

Affirmation

Simple form	V-ing form
I can tag you can tag he can tag we can tag you can tag they can tag	I can be tagging you can be tagging he can be tagging we can be tagging you can be tagging they can be tagging
Perfect	V-ing perfect
I can have tagged you can have tagged he can have tagged we can have tagged you can have tagged they can have tagged	I can have been tagging you can have been tagging he can have been tagging we can have been tagging you can have been tagging they can have been tagging

Negation

Simple form	V-ing form
I can't tag you can't tag he can't tag we can't tag you can't tag they can't tag	I can't be tagging you can't be tagging he can't be tagging we can't be tagging you can't be tagging they can't be tagging
Perfect	V-ing perfect
I can't have tagged you can't have tagged he can't have tagged we can't have tagged you can't have tagged they can't have tagged	I can't have been tagging you can't have been tagging he can't have been tagging we can't have been tagging you can't have been tagging they can't have been tagging

Interrogative form

Simple form	V-ing form
can I tag? can you tag? can he tag? can we tag? can you tag? can they tag?	can I be tagging? can you be tagging? can he be tagging? can we be tagging? can you be tagging? can they be tagging?
Perfect	V-ing perfect
can I have tagged? can you have tagged? can he have tagged? can we have tagged? can you have tagged? can they have tagged?	can I have been tagging? can you have been tagging? can he have been tagging? can we have been tagging? can you have been tagging? can they have been tagging?

Interro-negative form

Simple form	V-ing form
can't I tag? can't you tag? can't he tag? can't we tag? can't you tag? can't they tag?	can't I be tagging? can't you be tagging? can't he be tagging? can't we be tagging? can't you be tagging? can't they be tagging?
Perfect	V-ing perfect
can't I have tagged? can't you have tagged? can't he have tagged? can't we have tagged? can't you have tagged? can't they have tagged?	can't I have been tagging? can't you have been tagging? can't he have been tagging? can't we have been tagging? can't you have been tagging? can't they have been tagging?