must copper
Verbe régulier : copper - coppered- coppered

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must copper
you must copper
he must copper
we must copper
you must copper
they must copper 	I must be coppering
you must be coppering
he must be coppering
we must be coppering
you must be coppering
they must be coppering	I must have coppered
you must have coppered
he must have coppered
we must have coppered
you must have coppered
they must have coppered	I must have been coppering
you must have been coppering
he must have been coppering
we must have been coppering
you must have been coppering
they must have been coppering	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't copper
you mustn't copper
he mustn't copper
we mustn't copper
you mustn't copper
they mustn't copper 	I mustn't be coppering
you mustn't be coppering
he mustn't be coppering
we mustn't be coppering
you mustn't be coppering
they mustn't be coppering	I mustn't have coppered
you mustn't have coppered
he mustn't have coppered
we mustn't have coppered
you mustn't have coppered
they mustn't have coppered	I mustn't have been coppering
you mustn't have been coppering
he mustn't have been coppering
we mustn't have been coppering
you mustn't have been coppering
they mustn't have been coppering	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I copper?
must you copper?
must he copper?
must we copper?
must you copper?
must they copper? 	must I be coppering?
must you be coppering?
must he be coppering?
must we be coppering?
must you be coppering?
must they be coppering? 	must I have coppered?
must you have coppered?
must he have coppered?
must we have coppered?
must you have coppered?
must they have coppered? 	must I have been coppering?
must you have been coppering?
must he have been coppering?
must we have been coppering?
must you have been coppering?
must they have been coppering? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I copper?
mustn't you copper?
mustn't he copper?
mustn't we copper?
mustn't you copper?
mustn't they copper? 	mustn't I be coppering?
mustn't you be coppering?
mustn't he be coppering?
mustn't we be coppering?
mustn't you be coppering?
mustn't they be coppering? 	mustn't I have coppered?
mustn't you have coppered?
mustn't he have coppered?
mustn't we have coppered?
mustn't you have coppered?
mustn't they have coppered? 	mustn't I have been coppering?
mustn't you have been coppering?
mustn't he have been coppering?
mustn't we have been coppering?
mustn't you have been coppering?
mustn't they have been coppering?