must cheapen
Verbe régulier : cheapen - cheapened- cheapened
Traduction française : abaisser - devenir moins cher 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must cheapen
you must cheapen
he must cheapen
we must cheapen
you must cheapen
they must cheapen 	I must be cheapening
you must be cheapening
he must be cheapening
we must be cheapening
you must be cheapening
they must be cheapening	I must have cheapened
you must have cheapened
he must have cheapened
we must have cheapened
you must have cheapened
they must have cheapened	I must have been cheapening
you must have been cheapening
he must have been cheapening
we must have been cheapening
you must have been cheapening
they must have been cheapening	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not cheapen
you must not cheapen
he must not cheapen
we must not cheapen
you must not cheapen
they must not cheapen 	I must not be cheapening
you must not be cheapening
he must not be cheapening
we must not be cheapening
you must not be cheapening
they must not be cheapening	I must not have cheapened
you must not have cheapened
he must not have cheapened
we must not have cheapened
you must not have cheapened
they must not have cheapened	I must not have been cheapening
you must not have been cheapening
he must not have been cheapening
we must not have been cheapening
you must not have been cheapening
they must not have been cheapening	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I cheapen?
must you cheapen?
must he cheapen?
must we cheapen?
must you cheapen?
must they cheapen? 	must I be cheapening?
must you be cheapening?
must he be cheapening?
must we be cheapening?
must you be cheapening?
must they be cheapening? 	must I have cheapened?
must you have cheapened?
must he have cheapened?
must we have cheapened?
must you have cheapened?
must they have cheapened? 	must I have been cheapening?
must you have been cheapening?
must he have been cheapening?
must we have been cheapening?
must you have been cheapening?
must they have been cheapening? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not cheapen?
must you not cheapen?
must he not cheapen?
must we not cheapen?
must you not cheapen?
must they not cheapen? 	must I not be cheapening?
must you not be cheapening?
must he not be cheapening?
must we not be cheapening?
must you not be cheapening?
must they not be cheapening? 	must I not have cheapened?
must you not have cheapened?
must he not have cheapened?
must we not have cheapened?
must you not have cheapened?
must they not have cheapened? 	must I not have been cheapening?
must you not have been cheapening?
must he not have been cheapening?
must we not have been cheapening?
must you not have been cheapening?
must they not have been cheapening?