English verb conjugation
COULD SLATHER

Regular verb: slather - slathered - slathered

Affirmation

Simple form	V-ing form
I could slather you could slather she could slather we could slather you could slather they could slather	I could be slathering you could be slathering she could be slathering we could be slathering you could be slathering they could be slathering
Perfect	V-ing perfect
I could have slathered you could have slathered she could have slathered we could have slathered you could have slathered they could have slathered	I could have been slathering you could have been slathering she could have been slathering we could have been slathering you could have been slathering they could have been slathering

Negation

Simple form	V-ing form
I couldn't slather you couldn't slather she couldn't slather we couldn't slather you couldn't slather they couldn't slather	I couldn't be slathering you couldn't be slathering she couldn't be slathering we couldn't be slathering you couldn't be slathering they couldn't be slathering
Perfect	V-ing perfect
I couldn't have slathered you couldn't have slathered she couldn't have slathered we couldn't have slathered you couldn't have slathered they couldn't have slathered	I couldn't have been slathering you couldn't have been slathering she couldn't have been slathering we couldn't have been slathering you couldn't have been slathering they couldn't have been slathering

Interrogative form

Simple form	V-ing form
could I slather? could you slather? could she slather? could we slather? could you slather? could they slather?	could I be slathering? could you be slathering? could she be slathering? could we be slathering? could you be slathering? could they be slathering?
Perfect	V-ing perfect
could I have slathered? could you have slathered? could she have slathered? could we have slathered? could you have slathered? could they have slathered?	could I have been slathering? could you have been slathering? could she have been slathering? could we have been slathering? could you have been slathering? could they have been slathering?

Interro-negative form

Simple form	V-ing form
couldn't I slather? couldn't you slather? couldn't she slather? couldn't we slather? couldn't you slather? couldn't they slather?	couldn't I be slathering? couldn't you be slathering? couldn't she be slathering? couldn't we be slathering? couldn't you be slathering? couldn't they be slathering?
Perfect	V-ing perfect
couldn't I have slathered? couldn't you have slathered? couldn't she have slathered? couldn't we have slathered? couldn't you have slathered? couldn't they have slathered?	couldn't I have been slathering? couldn't you have been slathering? couldn't she have been slathering? couldn't we have been slathering? couldn't you have been slathering? couldn't they have been slathering?