English verb conjugation
COULD SNEER

Regular verb: sneer - sneered - sneered

Affirmation

Simple form	V-ing form
I could sneer you could sneer he could sneer we could sneer you could sneer they could sneer	I could be sneering you could be sneering he could be sneering we could be sneering you could be sneering they could be sneering
Perfect	V-ing perfect
I could have sneered you could have sneered he could have sneered we could have sneered you could have sneered they could have sneered	I could have been sneering you could have been sneering he could have been sneering we could have been sneering you could have been sneering they could have been sneering

Negation

Simple form	V-ing form
I couldn't sneer you couldn't sneer he couldn't sneer we couldn't sneer you couldn't sneer they couldn't sneer	I couldn't be sneering you couldn't be sneering he couldn't be sneering we couldn't be sneering you couldn't be sneering they couldn't be sneering
Perfect	V-ing perfect
I couldn't have sneered you couldn't have sneered he couldn't have sneered we couldn't have sneered you couldn't have sneered they couldn't have sneered	I couldn't have been sneering you couldn't have been sneering he couldn't have been sneering we couldn't have been sneering you couldn't have been sneering they couldn't have been sneering

Interrogative form

Simple form	V-ing form
could I sneer? could you sneer? could he sneer? could we sneer? could you sneer? could they sneer?	could I be sneering? could you be sneering? could he be sneering? could we be sneering? could you be sneering? could they be sneering?
Perfect	V-ing perfect
could I have sneered? could you have sneered? could he have sneered? could we have sneered? could you have sneered? could they have sneered?	could I have been sneering? could you have been sneering? could he have been sneering? could we have been sneering? could you have been sneering? could they have been sneering?

Interro-negative form

Simple form	V-ing form
couldn't I sneer? couldn't you sneer? couldn't he sneer? couldn't we sneer? couldn't you sneer? couldn't they sneer?	couldn't I be sneering? couldn't you be sneering? couldn't he be sneering? couldn't we be sneering? couldn't you be sneering? couldn't they be sneering?
Perfect	V-ing perfect
couldn't I have sneered? couldn't you have sneered? couldn't he have sneered? couldn't we have sneered? couldn't you have sneered? couldn't they have sneered?	couldn't I have been sneering? couldn't you have been sneering? couldn't he have been sneering? couldn't we have been sneering? couldn't you have been sneering? couldn't they have been sneering?