English verb conjugation
CAN SLITHER

Regular verb: slither - slithered - slithered

Affirmation

Simple form	V-ing form
I can slither you can slither he can slither we can slither you can slither they can slither	I can be slithering you can be slithering he can be slithering we can be slithering you can be slithering they can be slithering
Perfect	V-ing perfect
I can have slithered you can have slithered he can have slithered we can have slithered you can have slithered they can have slithered	I can have been slithering you can have been slithering he can have been slithering we can have been slithering you can have been slithering they can have been slithering

Negation

Simple form	V-ing form
I can't slither you can't slither he can't slither we can't slither you can't slither they can't slither	I can't be slithering you can't be slithering he can't be slithering we can't be slithering you can't be slithering they can't be slithering
Perfect	V-ing perfect
I can't have slithered you can't have slithered he can't have slithered we can't have slithered you can't have slithered they can't have slithered	I can't have been slithering you can't have been slithering he can't have been slithering we can't have been slithering you can't have been slithering they can't have been slithering

Interrogative form

Simple form	V-ing form
can I slither? can you slither? can he slither? can we slither? can you slither? can they slither?	can I be slithering? can you be slithering? can he be slithering? can we be slithering? can you be slithering? can they be slithering?
Perfect	V-ing perfect
can I have slithered? can you have slithered? can he have slithered? can we have slithered? can you have slithered? can they have slithered?	can I have been slithering? can you have been slithering? can he have been slithering? can we have been slithering? can you have been slithering? can they have been slithering?

Interro-negative form

Simple form	V-ing form
can't I slither? can't you slither? can't he slither? can't we slither? can't you slither? can't they slither?	can't I be slithering? can't you be slithering? can't he be slithering? can't we be slithering? can't you be slithering? can't they be slithering?
Perfect	V-ing perfect
can't I have slithered? can't you have slithered? can't he have slithered? can't we have slithered? can't you have slithered? can't they have slithered?	can't I have been slithering? can't you have been slithering? can't he have been slithering? can't we have been slithering? can't you have been slithering? can't they have been slithering?