English verb conjugation
MUST FAIR

Regular verb: fair - faired - faired

Affirmation

Simple form	V-ing form
I must fair you must fair she must fair we must fair you must fair they must fair	I must be fairing you must be fairing she must be fairing we must be fairing you must be fairing they must be fairing
Perfect	V-ing perfect
I must have faired you must have faired she must have faired we must have faired you must have faired they must have faired	I must have been fairing you must have been fairing she must have been fairing we must have been fairing you must have been fairing they must have been fairing

Negation

Simple form	V-ing form
I mustn't fair you mustn't fair she mustn't fair we mustn't fair you mustn't fair they mustn't fair	I mustn't be fairing you mustn't be fairing she mustn't be fairing we mustn't be fairing you mustn't be fairing they mustn't be fairing
Perfect	V-ing perfect
I mustn't have faired you mustn't have faired she mustn't have faired we mustn't have faired you mustn't have faired they mustn't have faired	I mustn't have been fairing you mustn't have been fairing she mustn't have been fairing we mustn't have been fairing you mustn't have been fairing they mustn't have been fairing

Interrogative form

Simple form	V-ing form
must I fair? must you fair? must she fair? must we fair? must you fair? must they fair?	must I be fairing? must you be fairing? must she be fairing? must we be fairing? must you be fairing? must they be fairing?
Perfect	V-ing perfect
must I have faired? must you have faired? must she have faired? must we have faired? must you have faired? must they have faired?	must I have been fairing? must you have been fairing? must she have been fairing? must we have been fairing? must you have been fairing? must they have been fairing?

Interro-negative form

Simple form	V-ing form
mustn't I fair? mustn't you fair? mustn't she fair? mustn't we fair? mustn't you fair? mustn't they fair?	mustn't I be fairing? mustn't you be fairing? mustn't she be fairing? mustn't we be fairing? mustn't you be fairing? mustn't they be fairing?
Perfect	V-ing perfect
mustn't I have faired? mustn't you have faired? mustn't she have faired? mustn't we have faired? mustn't you have faired? mustn't they have faired?	mustn't I have been fairing? mustn't you have been fairing? mustn't she have been fairing? mustn't we have been fairing? mustn't you have been fairing? mustn't they have been fairing?