English verb conjugation
MUST CHAMFER

Regular verb: chamfer - chamfered - chamfered

Affirmation

Simple form	V-ing form
I must chamfer you must chamfer she must chamfer we must chamfer you must chamfer they must chamfer	I must be chamfering you must be chamfering she must be chamfering we must be chamfering you must be chamfering they must be chamfering
Perfect	V-ing perfect
I must have chamfered you must have chamfered she must have chamfered we must have chamfered you must have chamfered they must have chamfered	I must have been chamfering you must have been chamfering she must have been chamfering we must have been chamfering you must have been chamfering they must have been chamfering

Negation

Simple form	V-ing form
I mustn't chamfer you mustn't chamfer she mustn't chamfer we mustn't chamfer you mustn't chamfer they mustn't chamfer	I mustn't be chamfering you mustn't be chamfering she mustn't be chamfering we mustn't be chamfering you mustn't be chamfering they mustn't be chamfering
Perfect	V-ing perfect
I mustn't have chamfered you mustn't have chamfered she mustn't have chamfered we mustn't have chamfered you mustn't have chamfered they mustn't have chamfered	I mustn't have been chamfering you mustn't have been chamfering she mustn't have been chamfering we mustn't have been chamfering you mustn't have been chamfering they mustn't have been chamfering

Interrogative form

Simple form	V-ing form
must I chamfer? must you chamfer? must she chamfer? must we chamfer? must you chamfer? must they chamfer?	must I be chamfering? must you be chamfering? must she be chamfering? must we be chamfering? must you be chamfering? must they be chamfering?
Perfect	V-ing perfect
must I have chamfered? must you have chamfered? must she have chamfered? must we have chamfered? must you have chamfered? must they have chamfered?	must I have been chamfering? must you have been chamfering? must she have been chamfering? must we have been chamfering? must you have been chamfering? must they have been chamfering?

Interro-negative form

Simple form	V-ing form
mustn't I chamfer? mustn't you chamfer? mustn't she chamfer? mustn't we chamfer? mustn't you chamfer? mustn't they chamfer?	mustn't I be chamfering? mustn't you be chamfering? mustn't she be chamfering? mustn't we be chamfering? mustn't you be chamfering? mustn't they be chamfering?
Perfect	V-ing perfect
mustn't I have chamfered? mustn't you have chamfered? mustn't she have chamfered? mustn't we have chamfered? mustn't you have chamfered? mustn't they have chamfered?	mustn't I have been chamfering? mustn't you have been chamfering? mustn't she have been chamfering? mustn't we have been chamfering? mustn't you have been chamfering? mustn't they have been chamfering?