English verb conjugation
COULD SNICKER

Regular verb: snicker - snickered - snickered

Affirmation

Simple form	V-ing form
I could snicker you could snicker she could snicker we could snicker you could snicker they could snicker	I could be snickering you could be snickering she could be snickering we could be snickering you could be snickering they could be snickering
Perfect	V-ing perfect
I could have snickered you could have snickered she could have snickered we could have snickered you could have snickered they could have snickered	I could have been snickering you could have been snickering she could have been snickering we could have been snickering you could have been snickering they could have been snickering

Negation

Simple form	V-ing form
I could not snicker you could not snicker she could not snicker we could not snicker you could not snicker they could not snicker	I could not be snickering you could not be snickering she could not be snickering we could not be snickering you could not be snickering they could not be snickering
Perfect	V-ing perfect
I could not have snickered you could not have snickered she could not have snickered we could not have snickered you could not have snickered they could not have snickered	I could not have been snickering you could not have been snickering she could not have been snickering we could not have been snickering you could not have been snickering they could not have been snickering

Interrogative form

Simple form	V-ing form
could I snicker? could you snicker? could she snicker? could we snicker? could you snicker? could they snicker?	could I be snickering? could you be snickering? could she be snickering? could we be snickering? could you be snickering? could they be snickering?
Perfect	V-ing perfect
could I have snickered? could you have snickered? could she have snickered? could we have snickered? could you have snickered? could they have snickered?	could I have been snickering? could you have been snickering? could she have been snickering? could we have been snickering? could you have been snickering? could they have been snickering?

Interro-negative form

Simple form	V-ing form
could I not snicker? could you not snicker? could she not snicker? could we not snicker? could you not snicker? could they not snicker?	could I not be snickering? could you not be snickering? could she not be snickering? could we not be snickering? could you not be snickering? could they not be snickering?
Perfect	V-ing perfect
could I not have snickered? could you not have snickered? could she not have snickered? could we not have snickered? could you not have snickered? could they not have snickered?	could I not have been snickering? could you not have been snickering? could she not have been snickering? could we not have been snickering? could you not have been snickering? could they not have been snickering?