must unseal
Verbe régulier : unseal - unsealed- unsealed
Traduction française : ouvrir - décacheter 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must unseal
you must unseal
she must unseal
we must unseal
you must unseal
they must unseal 	I must be unsealing
you must be unsealing
she must be unsealing
we must be unsealing
you must be unsealing
they must be unsealing	I must have unsealed
you must have unsealed
she must have unsealed
we must have unsealed
you must have unsealed
they must have unsealed	I must have been unsealing
you must have been unsealing
she must have been unsealing
we must have been unsealing
you must have been unsealing
they must have been unsealing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't unseal
you mustn't unseal
she mustn't unseal
we mustn't unseal
you mustn't unseal
they mustn't unseal 	I mustn't be unsealing
you mustn't be unsealing
she mustn't be unsealing
we mustn't be unsealing
you mustn't be unsealing
they mustn't be unsealing	I mustn't have unsealed
you mustn't have unsealed
she mustn't have unsealed
we mustn't have unsealed
you mustn't have unsealed
they mustn't have unsealed	I mustn't have been unsealing
you mustn't have been unsealing
she mustn't have been unsealing
we mustn't have been unsealing
you mustn't have been unsealing
they mustn't have been unsealing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I unseal?
must you unseal?
must she unseal?
must we unseal?
must you unseal?
must they unseal? 	must I be unsealing?
must you be unsealing?
must she be unsealing?
must we be unsealing?
must you be unsealing?
must they be unsealing? 	must I have unsealed?
must you have unsealed?
must she have unsealed?
must we have unsealed?
must you have unsealed?
must they have unsealed? 	must I have been unsealing?
must you have been unsealing?
must she have been unsealing?
must we have been unsealing?
must you have been unsealing?
must they have been unsealing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I unseal?
mustn't you unseal?
mustn't she unseal?
mustn't we unseal?
mustn't you unseal?
mustn't they unseal? 	mustn't I be unsealing?
mustn't you be unsealing?
mustn't she be unsealing?
mustn't we be unsealing?
mustn't you be unsealing?
mustn't they be unsealing? 	mustn't I have unsealed?
mustn't you have unsealed?
mustn't she have unsealed?
mustn't we have unsealed?
mustn't you have unsealed?
mustn't they have unsealed? 	mustn't I have been unsealing?
mustn't you have been unsealing?
mustn't she have been unsealing?
mustn't we have been unsealing?
mustn't you have been unsealing?
mustn't they have been unsealing?