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 mustn't snack you mustn't snack he mustn't snack we mustn't snack you mustn't snack they mustn't snack	I mustn't be snacking you mustn't be snacking he mustn't be snacking we mustn't be snacking you mustn't be snacking they mustn't be snacking
Perfect	V-ing perfect
I mustn't have snacked you mustn't have snacked he mustn't have snacked we mustn't have snacked you mustn't have snacked they mustn't have snacked	I mustn't have been snacking you mustn't have been snacking he mustn't have been snacking we mustn't have been snacking you mustn't have been snacking they mustn't 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
mustn't I snack? mustn't you snack? mustn't he snack? mustn't we snack? mustn't you snack? mustn't they snack?	mustn't I be snacking? mustn't you be snacking? mustn't he be snacking? mustn't we be snacking? mustn't you be snacking? mustn't they be snacking?
Perfect	V-ing perfect
mustn't I have snacked? mustn't you have snacked? mustn't he have snacked? mustn't we have snacked? mustn't you have snacked? mustn't they have snacked?	mustn't I have been snacking? mustn't you have been snacking? mustn't he have been snacking? mustn't we have been snacking? mustn't you have been snacking? mustn't they have been snacking?