English verb conjugation
MUST ARBITRATE

Regular verb: arbitrate - arbitrated - arbitrated

Affirmation

Simple form	V-ing form
I must arbitrate you must arbitrate he must arbitrate we must arbitrate you must arbitrate they must arbitrate	I must be arbitrating you must be arbitrating he must be arbitrating we must be arbitrating you must be arbitrating they must be arbitrating
Perfect	V-ing perfect
I must have arbitrated you must have arbitrated he must have arbitrated we must have arbitrated you must have arbitrated they must have arbitrated	I must have been arbitrating you must have been arbitrating he must have been arbitrating we must have been arbitrating you must have been arbitrating they must have been arbitrating

Negation

Simple form	V-ing form
I mustn't arbitrate you mustn't arbitrate he mustn't arbitrate we mustn't arbitrate you mustn't arbitrate they mustn't arbitrate	I mustn't be arbitrating you mustn't be arbitrating he mustn't be arbitrating we mustn't be arbitrating you mustn't be arbitrating they mustn't be arbitrating
Perfect	V-ing perfect
I mustn't have arbitrated you mustn't have arbitrated he mustn't have arbitrated we mustn't have arbitrated you mustn't have arbitrated they mustn't have arbitrated	I mustn't have been arbitrating you mustn't have been arbitrating he mustn't have been arbitrating we mustn't have been arbitrating you mustn't have been arbitrating they mustn't have been arbitrating

Interrogative form

Simple form	V-ing form
must I arbitrate? must you arbitrate? must he arbitrate? must we arbitrate? must you arbitrate? must they arbitrate?	must I be arbitrating? must you be arbitrating? must he be arbitrating? must we be arbitrating? must you be arbitrating? must they be arbitrating?
Perfect	V-ing perfect
must I have arbitrated? must you have arbitrated? must he have arbitrated? must we have arbitrated? must you have arbitrated? must they have arbitrated?	must I have been arbitrating? must you have been arbitrating? must he have been arbitrating? must we have been arbitrating? must you have been arbitrating? must they have been arbitrating?

Interro-negative form

Simple form	V-ing form
mustn't I arbitrate? mustn't you arbitrate? mustn't he arbitrate? mustn't we arbitrate? mustn't you arbitrate? mustn't they arbitrate?	mustn't I be arbitrating? mustn't you be arbitrating? mustn't he be arbitrating? mustn't we be arbitrating? mustn't you be arbitrating? mustn't they be arbitrating?
Perfect	V-ing perfect
mustn't I have arbitrated? mustn't you have arbitrated? mustn't he have arbitrated? mustn't we have arbitrated? mustn't you have arbitrated? mustn't they have arbitrated?	mustn't I have been arbitrating? mustn't you have been arbitrating? mustn't he have been arbitrating? mustn't we have been arbitrating? mustn't you have been arbitrating? mustn't they have been arbitrating?