English verb conjugation
MUST SNACK

Regular verb: snack - snacked - snacked

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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