English verb conjugation
CAN NAG

Regular verb: nag - nagged - nagged

Affirmation

Simple form	V-ing form
I can nag you can nag he can nag we can nag you can nag they can nag	I can be nagging you can be nagging he can be nagging we can be nagging you can be nagging they can be nagging
Perfect	V-ing perfect
I can have nagged you can have nagged he can have nagged we can have nagged you can have nagged they can have nagged	I can have been nagging you can have been nagging he can have been nagging we can have been nagging you can have been nagging they can have been nagging

Negation

Simple form	V-ing form
I can't nag you can't nag he can't nag we can't nag you can't nag they can't nag	I can't be nagging you can't be nagging he can't be nagging we can't be nagging you can't be nagging they can't be nagging
Perfect	V-ing perfect
I can't have nagged you can't have nagged he can't have nagged we can't have nagged you can't have nagged they can't have nagged	I can't have been nagging you can't have been nagging he can't have been nagging we can't have been nagging you can't have been nagging they can't have been nagging

Interrogative form

Simple form	V-ing form
can I nag? can you nag? can he nag? can we nag? can you nag? can they nag?	can I be nagging? can you be nagging? can he be nagging? can we be nagging? can you be nagging? can they be nagging?
Perfect	V-ing perfect
can I have nagged? can you have nagged? can he have nagged? can we have nagged? can you have nagged? can they have nagged?	can I have been nagging? can you have been nagging? can he have been nagging? can we have been nagging? can you have been nagging? can they have been nagging?

Interro-negative form

Simple form	V-ing form
can't I nag? can't you nag? can't he nag? can't we nag? can't you nag? can't they nag?	can't I be nagging? can't you be nagging? can't he be nagging? can't we be nagging? can't you be nagging? can't they be nagging?
Perfect	V-ing perfect
can't I have nagged? can't you have nagged? can't he have nagged? can't we have nagged? can't you have nagged? can't they have nagged?	can't I have been nagging? can't you have been nagging? can't he have been nagging? can't we have been nagging? can't you have been nagging? can't they have been nagging?