English verb conjugation
MUST FLETCH

Regular verb: fletch - fletched - fletched

Affirmation

Simple form	V-ing form
I must fletch you must fletch she must fletch we must fletch you must fletch they must fletch	I must be fletching you must be fletching she must be fletching we must be fletching you must be fletching they must be fletching
Perfect	V-ing perfect
I must have fletched you must have fletched she must have fletched we must have fletched you must have fletched they must have fletched	I must have been fletching you must have been fletching she must have been fletching we must have been fletching you must have been fletching they must have been fletching

Negation

Simple form	V-ing form
I mustn't fletch you mustn't fletch she mustn't fletch we mustn't fletch you mustn't fletch they mustn't fletch	I mustn't be fletching you mustn't be fletching she mustn't be fletching we mustn't be fletching you mustn't be fletching they mustn't be fletching
Perfect	V-ing perfect
I mustn't have fletched you mustn't have fletched she mustn't have fletched we mustn't have fletched you mustn't have fletched they mustn't have fletched	I mustn't have been fletching you mustn't have been fletching she mustn't have been fletching we mustn't have been fletching you mustn't have been fletching they mustn't have been fletching

Interrogative form

Simple form	V-ing form
must I fletch? must you fletch? must she fletch? must we fletch? must you fletch? must they fletch?	must I be fletching? must you be fletching? must she be fletching? must we be fletching? must you be fletching? must they be fletching?
Perfect	V-ing perfect
must I have fletched? must you have fletched? must she have fletched? must we have fletched? must you have fletched? must they have fletched?	must I have been fletching? must you have been fletching? must she have been fletching? must we have been fletching? must you have been fletching? must they have been fletching?

Interro-negative form

Simple form	V-ing form
mustn't I fletch? mustn't you fletch? mustn't she fletch? mustn't we fletch? mustn't you fletch? mustn't they fletch?	mustn't I be fletching? mustn't you be fletching? mustn't she be fletching? mustn't we be fletching? mustn't you be fletching? mustn't they be fletching?
Perfect	V-ing perfect
mustn't I have fletched? mustn't you have fletched? mustn't she have fletched? mustn't we have fletched? mustn't you have fletched? mustn't they have fletched?	mustn't I have been fletching? mustn't you have been fletching? mustn't she have been fletching? mustn't we have been fletching? mustn't you have been fletching? mustn't they have been fletching?