English verb conjugation
COULD SNACK

Regular verb: snack - snacked - snacked

Affirmation

Simple form	V-ing form
I could snack you could snack she could snack we could snack you could snack they could snack	I could be snacking you could be snacking she could be snacking we could be snacking you could be snacking they could be snacking
Perfect	V-ing perfect
I could have snacked you could have snacked she could have snacked we could have snacked you could have snacked they could have snacked	I could have been snacking you could have been snacking she could have been snacking we could have been snacking you could have been snacking they could have been snacking

Negation

Simple form	V-ing form
I could not snack you could not snack she could not snack we could not snack you could not snack they could not snack	I could not be snacking you could not be snacking she could not be snacking we could not be snacking you could not be snacking they could not be snacking
Perfect	V-ing perfect
I could not have snacked you could not have snacked she could not have snacked we could not have snacked you could not have snacked they could not have snacked	I could not have been snacking you could not have been snacking she could not have been snacking we could not have been snacking you could not have been snacking they could not have been snacking

Interrogative form

Simple form	V-ing form
could I snack? could you snack? could she snack? could we snack? could you snack? could they snack?	could I be snacking? could you be snacking? could she be snacking? could we be snacking? could you be snacking? could they be snacking?
Perfect	V-ing perfect
could I have snacked? could you have snacked? could she have snacked? could we have snacked? could you have snacked? could they have snacked?	could I have been snacking? could you have been snacking? could she have been snacking? could we have been snacking? could you have been snacking? could they have been snacking?

Interro-negative form

Simple form	V-ing form
could I not snack? could you not snack? could she not snack? could we not snack? could you not snack? could they not snack?	could I not be snacking? could you not be snacking? could she not be snacking? could we not be snacking? could you not be snacking? could they not be snacking?
Perfect	V-ing perfect
could I not have snacked? could you not have snacked? could she not have snacked? could we not have snacked? could you not have snacked? could they not have snacked?	could I not have been snacking? could you not have been snacking? could she not have been snacking? could we not have been snacking? could you not have been snacking? could they not have been snacking?