English verb conjugation
CAN SNACK

Regular verb: snack - snacked - snacked

Affirmation

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

Negation

Simple form	V-ing form
I cannot snack you cannot snack he cannot snack we cannot snack you cannot snack they cannot snack	I cannot be snacking you cannot be snacking he cannot be snacking we cannot be snacking you cannot be snacking they cannot be snacking
Perfect	V-ing perfect
I cannot have snacked you cannot have snacked he cannot have snacked we cannot have snacked you cannot have snacked they cannot have snacked	I cannot have been snacking you cannot have been snacking he cannot have been snacking we cannot have been snacking you cannot have been snacking they cannot have been snacking

Interrogative form

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

Interro-negative form

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