must copyright
Verbe régulier : copyright - copyrighted- copyrighted
Traduction française : obtenir les droits exclusifs ou le copyright 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must copyright
you must copyright
he must copyright
we must copyright
you must copyright
they must copyright 	I must be copyrighting
you must be copyrighting
he must be copyrighting
we must be copyrighting
you must be copyrighting
they must be copyrighting	I must have copyrighted
you must have copyrighted
he must have copyrighted
we must have copyrighted
you must have copyrighted
they must have copyrighted	I must have been copyrighting
you must have been copyrighting
he must have been copyrighting
we must have been copyrighting
you must have been copyrighting
they must have been copyrighting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not copyright
you must not copyright
he must not copyright
we must not copyright
you must not copyright
they must not copyright 	I must not be copyrighting
you must not be copyrighting
he must not be copyrighting
we must not be copyrighting
you must not be copyrighting
they must not be copyrighting	I must not have copyrighted
you must not have copyrighted
he must not have copyrighted
we must not have copyrighted
you must not have copyrighted
they must not have copyrighted	I must not have been copyrighting
you must not have been copyrighting
he must not have been copyrighting
we must not have been copyrighting
you must not have been copyrighting
they must not have been copyrighting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I copyright?
must you copyright?
must he copyright?
must we copyright?
must you copyright?
must they copyright? 	must I be copyrighting?
must you be copyrighting?
must he be copyrighting?
must we be copyrighting?
must you be copyrighting?
must they be copyrighting? 	must I have copyrighted?
must you have copyrighted?
must he have copyrighted?
must we have copyrighted?
must you have copyrighted?
must they have copyrighted? 	must I have been copyrighting?
must you have been copyrighting?
must he have been copyrighting?
must we have been copyrighting?
must you have been copyrighting?
must they have been copyrighting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not copyright?
must you not copyright?
must he not copyright?
must we not copyright?
must you not copyright?
must they not copyright? 	must I not be copyrighting?
must you not be copyrighting?
must he not be copyrighting?
must we not be copyrighting?
must you not be copyrighting?
must they not be copyrighting? 	must I not have copyrighted?
must you not have copyrighted?
must he not have copyrighted?
must we not have copyrighted?
must you not have copyrighted?
must they not have copyrighted? 	must I not have been copyrighting?
must you not have been copyrighting?
must he not have been copyrighting?
must we not have been copyrighting?
must you not have been copyrighting?
must they not have been copyrighting?