English verb conjugation
MUST CHAFFER

Regular verb: chaffer - chaffered - chaffered

Affirmation

Simple form	V-ing form
I must chaffer you must chaffer she must chaffer we must chaffer you must chaffer they must chaffer	I must be chaffering you must be chaffering she must be chaffering we must be chaffering you must be chaffering they must be chaffering
Perfect	V-ing perfect
I must have chaffered you must have chaffered she must have chaffered we must have chaffered you must have chaffered they must have chaffered	I must have been chaffering you must have been chaffering she must have been chaffering we must have been chaffering you must have been chaffering they must have been chaffering

Negation

Simple form	V-ing form
I mustn't chaffer you mustn't chaffer she mustn't chaffer we mustn't chaffer you mustn't chaffer they mustn't chaffer	I mustn't be chaffering you mustn't be chaffering she mustn't be chaffering we mustn't be chaffering you mustn't be chaffering they mustn't be chaffering
Perfect	V-ing perfect
I mustn't have chaffered you mustn't have chaffered she mustn't have chaffered we mustn't have chaffered you mustn't have chaffered they mustn't have chaffered	I mustn't have been chaffering you mustn't have been chaffering she mustn't have been chaffering we mustn't have been chaffering you mustn't have been chaffering they mustn't have been chaffering

Interrogative form

Simple form	V-ing form
must I chaffer? must you chaffer? must she chaffer? must we chaffer? must you chaffer? must they chaffer?	must I be chaffering? must you be chaffering? must she be chaffering? must we be chaffering? must you be chaffering? must they be chaffering?
Perfect	V-ing perfect
must I have chaffered? must you have chaffered? must she have chaffered? must we have chaffered? must you have chaffered? must they have chaffered?	must I have been chaffering? must you have been chaffering? must she have been chaffering? must we have been chaffering? must you have been chaffering? must they have been chaffering?

Interro-negative form

Simple form	V-ing form
mustn't I chaffer? mustn't you chaffer? mustn't she chaffer? mustn't we chaffer? mustn't you chaffer? mustn't they chaffer?	mustn't I be chaffering? mustn't you be chaffering? mustn't she be chaffering? mustn't we be chaffering? mustn't you be chaffering? mustn't they be chaffering?
Perfect	V-ing perfect
mustn't I have chaffered? mustn't you have chaffered? mustn't she have chaffered? mustn't we have chaffered? mustn't you have chaffered? mustn't they have chaffered?	mustn't I have been chaffering? mustn't you have been chaffering? mustn't she have been chaffering? mustn't we have been chaffering? mustn't you have been chaffering? mustn't they have been chaffering?