must underseal
Verbe régulier : underseal - undersealed- undersealed
Traduction française : (UK) faire un traitement antirouille 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must underseal
you must underseal
she must underseal
we must underseal
you must underseal
they must underseal 	I must be undersealing
you must be undersealing
she must be undersealing
we must be undersealing
you must be undersealing
they must be undersealing	I must have undersealed
you must have undersealed
she must have undersealed
we must have undersealed
you must have undersealed
they must have undersealed	I must have been undersealing
you must have been undersealing
she must have been undersealing
we must have been undersealing
you must have been undersealing
they must have been undersealing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not underseal
you must not underseal
she must not underseal
we must not underseal
you must not underseal
they must not underseal 	I must not be undersealing
you must not be undersealing
she must not be undersealing
we must not be undersealing
you must not be undersealing
they must not be undersealing	I must not have undersealed
you must not have undersealed
she must not have undersealed
we must not have undersealed
you must not have undersealed
they must not have undersealed	I must not have been undersealing
you must not have been undersealing
she must not have been undersealing
we must not have been undersealing
you must not have been undersealing
they must not have been undersealing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I underseal?
must you underseal?
must she underseal?
must we underseal?
must you underseal?
must they underseal? 	must I be undersealing?
must you be undersealing?
must she be undersealing?
must we be undersealing?
must you be undersealing?
must they be undersealing? 	must I have undersealed?
must you have undersealed?
must she have undersealed?
must we have undersealed?
must you have undersealed?
must they have undersealed? 	must I have been undersealing?
must you have been undersealing?
must she have been undersealing?
must we have been undersealing?
must you have been undersealing?
must they have been undersealing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not underseal?
must you not underseal?
must she not underseal?
must we not underseal?
must you not underseal?
must they not underseal? 	must I not be undersealing?
must you not be undersealing?
must she not be undersealing?
must we not be undersealing?
must you not be undersealing?
must they not be undersealing? 	must I not have undersealed?
must you not have undersealed?
must she not have undersealed?
must we not have undersealed?
must you not have undersealed?
must they not have undersealed? 	must I not have been undersealing?
must you not have been undersealing?
must she not have been undersealing?
must we not have been undersealing?
must you not have been undersealing?
must they not have been undersealing?