English verb conjugation
CAN SMOTHER

Regular verb: smother - smothered - smothered

Affirmation

Simple form	V-ing form
I can smother you can smother he can smother we can smother you can smother they can smother	I can be smothering you can be smothering he can be smothering we can be smothering you can be smothering they can be smothering
Perfect	V-ing perfect
I can have smothered you can have smothered he can have smothered we can have smothered you can have smothered they can have smothered	I can have been smothering you can have been smothering he can have been smothering we can have been smothering you can have been smothering they can have been smothering

Negation

Simple form	V-ing form
I can't smother you can't smother he can't smother we can't smother you can't smother they can't smother	I can't be smothering you can't be smothering he can't be smothering we can't be smothering you can't be smothering they can't be smothering
Perfect	V-ing perfect
I can't have smothered you can't have smothered he can't have smothered we can't have smothered you can't have smothered they can't have smothered	I can't have been smothering you can't have been smothering he can't have been smothering we can't have been smothering you can't have been smothering they can't have been smothering

Interrogative form

Simple form	V-ing form
can I smother? can you smother? can he smother? can we smother? can you smother? can they smother?	can I be smothering? can you be smothering? can he be smothering? can we be smothering? can you be smothering? can they be smothering?
Perfect	V-ing perfect
can I have smothered? can you have smothered? can he have smothered? can we have smothered? can you have smothered? can they have smothered?	can I have been smothering? can you have been smothering? can he have been smothering? can we have been smothering? can you have been smothering? can they have been smothering?

Interro-negative form

Simple form	V-ing form
can't I smother? can't you smother? can't he smother? can't we smother? can't you smother? can't they smother?	can't I be smothering? can't you be smothering? can't he be smothering? can't we be smothering? can't you be smothering? can't they be smothering?
Perfect	V-ing perfect
can't I have smothered? can't you have smothered? can't he have smothered? can't we have smothered? can't you have smothered? can't they have smothered?	can't I have been smothering? can't you have been smothering? can't he have been smothering? can't we have been smothering? can't you have been smothering? can't they have been smothering?