must camber
Regular verb: camber - cambered- cambered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must camber
you must camber
she must camber
we must camber
you must camber
they must camber 	I must be cambering
you must be cambering
she must be cambering
we must be cambering
you must be cambering
they must be cambering	I must have cambered
you must have cambered
she must have cambered
we must have cambered
you must have cambered
they must have cambered	I must have been cambering
you must have been cambering
she must have been cambering
we must have been cambering
you must have been cambering
they must have been cambering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not camber
you must not camber
she must not camber
we must not camber
you must not camber
they must not camber 	I must not be cambering
you must not be cambering
she must not be cambering
we must not be cambering
you must not be cambering
they must not be cambering	I must not have cambered
you must not have cambered
she must not have cambered
we must not have cambered
you must not have cambered
they must not have cambered	I must not have been cambering
you must not have been cambering
she must not have been cambering
we must not have been cambering
you must not have been cambering
they must not have been cambering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I camber?
must you camber?
must she camber?
must we camber?
must you camber?
must they camber? 	must I be cambering?
must you be cambering?
must she be cambering?
must we be cambering?
must you be cambering?
must they be cambering? 	must I have cambered?
must you have cambered?
must she have cambered?
must we have cambered?
must you have cambered?
must they have cambered? 	must I have been cambering?
must you have been cambering?
must she have been cambering?
must we have been cambering?
must you have been cambering?
must they have been cambering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not camber?
must you not camber?
must she not camber?
must we not camber?
must you not camber?
must they not camber? 	must I not be cambering?
must you not be cambering?
must she not be cambering?
must we not be cambering?
must you not be cambering?
must they not be cambering? 	must I not have cambered?
must you not have cambered?
must she not have cambered?
must we not have cambered?
must you not have cambered?
must they not have cambered? 	must I not have been cambering?
must you not have been cambering?
must she not have been cambering?
must we not have been cambering?
must you not have been cambering?
must they not have been cambering?