must perfect
Verbe régulier : perfect - perfected- perfected
Traduction française : perfectionner - mettre au point 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must perfect
you must perfect
she must perfect
we must perfect
you must perfect
they must perfect 	I must be perfecting
you must be perfecting
she must be perfecting
we must be perfecting
you must be perfecting
they must be perfecting	I must have perfected
you must have perfected
she must have perfected
we must have perfected
you must have perfected
they must have perfected	I must have been perfecting
you must have been perfecting
she must have been perfecting
we must have been perfecting
you must have been perfecting
they must have been perfecting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not perfect
you must not perfect
she must not perfect
we must not perfect
you must not perfect
they must not perfect 	I must not be perfecting
you must not be perfecting
she must not be perfecting
we must not be perfecting
you must not be perfecting
they must not be perfecting	I must not have perfected
you must not have perfected
she must not have perfected
we must not have perfected
you must not have perfected
they must not have perfected	I must not have been perfecting
you must not have been perfecting
she must not have been perfecting
we must not have been perfecting
you must not have been perfecting
they must not have been perfecting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I perfect?
must you perfect?
must she perfect?
must we perfect?
must you perfect?
must they perfect? 	must I be perfecting?
must you be perfecting?
must she be perfecting?
must we be perfecting?
must you be perfecting?
must they be perfecting? 	must I have perfected?
must you have perfected?
must she have perfected?
must we have perfected?
must you have perfected?
must they have perfected? 	must I have been perfecting?
must you have been perfecting?
must she have been perfecting?
must we have been perfecting?
must you have been perfecting?
must they have been perfecting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not perfect?
must you not perfect?
must she not perfect?
must we not perfect?
must you not perfect?
must they not perfect? 	must I not be perfecting?
must you not be perfecting?
must she not be perfecting?
must we not be perfecting?
must you not be perfecting?
must they not be perfecting? 	must I not have perfected?
must you not have perfected?
must she not have perfected?
must we not have perfected?
must you not have perfected?
must they not have perfected? 	must I not have been perfecting?
must you not have been perfecting?
must she not have been perfecting?
must we not have been perfecting?
must you not have been perfecting?
must they not have been perfecting?