must unlace
Verbe régulier : unlace - unlaced- unlaced
Traduction française : délacer - défaire le lacet ou les lacets de 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must unlace
you must unlace
he must unlace
we must unlace
you must unlace
they must unlace 	I must be unlacing
you must be unlacing
he must be unlacing
we must be unlacing
you must be unlacing
they must be unlacing	I must have unlaced
you must have unlaced
he must have unlaced
we must have unlaced
you must have unlaced
they must have unlaced	I must have been unlacing
you must have been unlacing
he must have been unlacing
we must have been unlacing
you must have been unlacing
they must have been unlacing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not unlace
you must not unlace
he must not unlace
we must not unlace
you must not unlace
they must not unlace 	I must not be unlacing
you must not be unlacing
he must not be unlacing
we must not be unlacing
you must not be unlacing
they must not be unlacing	I must not have unlaced
you must not have unlaced
he must not have unlaced
we must not have unlaced
you must not have unlaced
they must not have unlaced	I must not have been unlacing
you must not have been unlacing
he must not have been unlacing
we must not have been unlacing
you must not have been unlacing
they must not have been unlacing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I unlace?
must you unlace?
must he unlace?
must we unlace?
must you unlace?
must they unlace? 	must I be unlacing?
must you be unlacing?
must he be unlacing?
must we be unlacing?
must you be unlacing?
must they be unlacing? 	must I have unlaced?
must you have unlaced?
must he have unlaced?
must we have unlaced?
must you have unlaced?
must they have unlaced? 	must I have been unlacing?
must you have been unlacing?
must he have been unlacing?
must we have been unlacing?
must you have been unlacing?
must they have been unlacing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not unlace?
must you not unlace?
must he not unlace?
must we not unlace?
must you not unlace?
must they not unlace? 	must I not be unlacing?
must you not be unlacing?
must he not be unlacing?
must we not be unlacing?
must you not be unlacing?
must they not be unlacing? 	must I not have unlaced?
must you not have unlaced?
must he not have unlaced?
must we not have unlaced?
must you not have unlaced?
must they not have unlaced? 	must I not have been unlacing?
must you not have been unlacing?
must he not have been unlacing?
must we not have been unlacing?
must you not have been unlacing?
must they not have been unlacing?