Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I must assign assign you must assign assign he must assign assign we must assign assign you must assign assign they must assign assign
V-ing form
I must be assign assigning you must be assign assigning he must be assign assigning we must be assign assigning you must be assign assigning they must be assign assigning
Perfect
I must have assign assigned you must have assign assigned he must have assign assigned we must have assign assigned you must have assign assigned they must have assign assigned
V-ing perfect
I must have been assign assigning you must have been assign assigning he must have been assign assigning we must have been assign assigning you must have been assign assigning they must have been assign assigning
Negation
Simple form
I mustn't assign assign you mustn't assign assign he mustn't assign assign we mustn't assign assign you mustn't assign assign they mustn't assign assign
V-ing form
I mustn't be assign assigning you mustn't be assign assigning he mustn't be assign assigning we mustn't be assign assigning you mustn't be assign assigning they mustn't be assign assigning
Perfect
I mustn't have assign assigned you mustn't have assign assigned he mustn't have assign assigned we mustn't have assign assigned you mustn't have assign assigned they mustn't have assign assigned
V-ing perfect
I mustn't have been assign assigning you mustn't have been assign assigning he mustn't have been assign assigning we mustn't have been assign assigning you mustn't have been assign assigning they mustn't have been assign assigning
Interrogative form
Simple form
must I assign assign? must you assign assign? must he assign assign? must we assign assign? must you assign assign? must they assign assign?
V-ing form
must I be assign assigning? must you be assign assigning? must he be assign assigning? must we be assign assigning? must you be assign assigning? must they be assign assigning?
Perfect
must I have assign assigned? must you have assign assigned? must he have assign assigned? must we have assign assigned? must you have assign assigned? must they have assign assigned?
V-ing perfect
must I have been assign assigning? must you have been assign assigning? must he have been assign assigning? must we have been assign assigning? must you have been assign assigning? must they have been assign assigning?
Interro-negative form
Simple form
mustn't I assign assign? mustn't you assign assign? mustn't he assign assign? mustn't we assign assign? mustn't you assign assign? mustn't they assign assign?
V-ing form
mustn't I be assign assigning? mustn't you be assign assigning? mustn't he be assign assigning? mustn't we be assign assigning? mustn't you be assign assigning? mustn't they be assign assigning?
Perfect
mustn't I have assign assigned? mustn't you have assign assigned? mustn't he have assign assigned? mustn't we have assign assigned? mustn't you have assign assigned? mustn't they have assign assigned?
V-ing perfect
mustn't I have been assign assigning? mustn't you have been assign assigning? mustn't he have been assign assigning? mustn't we have been assign assigning? mustn't you have been assign assigning? mustn't they have been assign assigning?