English verb conjugation
MUST ASSIGN

Regular verb: assign - assigned - assigned

Affirmation

Simple form	V-ing form
I must assign you must assign she must assign we must assign you must assign they must assign	I must be assigning you must be assigning she must be assigning we must be assigning you must be assigning they must be assigning
Perfect	V-ing perfect
I must have assigned you must have assigned she must have assigned we must have assigned you must have assigned they must have assigned	I must have been assigning you must have been assigning she must have been assigning we must have been assigning you must have been assigning they must have been assigning

Negation

Simple form	V-ing form
I must not assign you must not assign she must not assign we must not assign you must not assign they must not assign	I must not be assigning you must not be assigning she must not be assigning we must not be assigning you must not be assigning they must not be assigning
Perfect	V-ing perfect
I must not have assigned you must not have assigned she must not have assigned we must not have assigned you must not have assigned they must not have assigned	I must not have been assigning you must not have been assigning she must not have been assigning we must not have been assigning you must not have been assigning they must not have been assigning

Interrogative form

Simple form	V-ing form
must I assign? must you assign? must she assign? must we assign? must you assign? must they assign?	must I be assigning? must you be assigning? must she be assigning? must we be assigning? must you be assigning? must they be assigning?
Perfect	V-ing perfect
must I have assigned? must you have assigned? must she have assigned? must we have assigned? must you have assigned? must they have assigned?	must I have been assigning? must you have been assigning? must she have been assigning? must we have been assigning? must you have been assigning? must they have been assigning?

Interro-negative form

Simple form	V-ing form
must I not assign? must you not assign? must she not assign? must we not assign? must you not assign? must they not assign?	must I not be assigning? must you not be assigning? must she not be assigning? must we not be assigning? must you not be assigning? must they not be assigning?
Perfect	V-ing perfect
must I not have assigned? must you not have assigned? must she not have assigned? must we not have assigned? must you not have assigned? must they not have assigned?	must I not have been assigning? must you not have been assigning? must she not have been assigning? must we not have been assigning? must you not have been assigning? must they not have been assigning?