must prefab
Verbe régulier : prefab - prefabed- prefabed

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must prefab
you must prefab
he must prefab
we must prefab
you must prefab
they must prefab 	I must be prefabing
you must be prefabing
he must be prefabing
we must be prefabing
you must be prefabing
they must be prefabing	I must have prefabed
you must have prefabed
he must have prefabed
we must have prefabed
you must have prefabed
they must have prefabed	I must have been prefabing
you must have been prefabing
he must have been prefabing
we must have been prefabing
you must have been prefabing
they must have been prefabing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not prefab
you must not prefab
he must not prefab
we must not prefab
you must not prefab
they must not prefab 	I must not be prefabing
you must not be prefabing
he must not be prefabing
we must not be prefabing
you must not be prefabing
they must not be prefabing	I must not have prefabed
you must not have prefabed
he must not have prefabed
we must not have prefabed
you must not have prefabed
they must not have prefabed	I must not have been prefabing
you must not have been prefabing
he must not have been prefabing
we must not have been prefabing
you must not have been prefabing
they must not have been prefabing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I prefab?
must you prefab?
must he prefab?
must we prefab?
must you prefab?
must they prefab? 	must I be prefabing?
must you be prefabing?
must he be prefabing?
must we be prefabing?
must you be prefabing?
must they be prefabing? 	must I have prefabed?
must you have prefabed?
must he have prefabed?
must we have prefabed?
must you have prefabed?
must they have prefabed? 	must I have been prefabing?
must you have been prefabing?
must he have been prefabing?
must we have been prefabing?
must you have been prefabing?
must they have been prefabing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not prefab?
must you not prefab?
must he not prefab?
must we not prefab?
must you not prefab?
must they not prefab? 	must I not be prefabing?
must you not be prefabing?
must he not be prefabing?
must we not be prefabing?
must you not be prefabing?
must they not be prefabing? 	must I not have prefabed?
must you not have prefabed?
must he not have prefabed?
must we not have prefabed?
must you not have prefabed?
must they not have prefabed? 	must I not have been prefabing?
must you not have been prefabing?
must he not have been prefabing?
must we not have been prefabing?
must you not have been prefabing?
must they not have been prefabing?