must expire
Verbe régulier : expire - expired- expired
Traduction française : expirer - arriver à terme 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must expire
you must expire
she must expire
we must expire
you must expire
they must expire 	I must be expiring
you must be expiring
she must be expiring
we must be expiring
you must be expiring
they must be expiring	I must have expired
you must have expired
she must have expired
we must have expired
you must have expired
they must have expired	I must have been expiring
you must have been expiring
she must have been expiring
we must have been expiring
you must have been expiring
they must have been expiring	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not expire
you must not expire
she must not expire
we must not expire
you must not expire
they must not expire 	I must not be expiring
you must not be expiring
she must not be expiring
we must not be expiring
you must not be expiring
they must not be expiring	I must not have expired
you must not have expired
she must not have expired
we must not have expired
you must not have expired
they must not have expired	I must not have been expiring
you must not have been expiring
she must not have been expiring
we must not have been expiring
you must not have been expiring
they must not have been expiring	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I expire?
must you expire?
must she expire?
must we expire?
must you expire?
must they expire? 	must I be expiring?
must you be expiring?
must she be expiring?
must we be expiring?
must you be expiring?
must they be expiring? 	must I have expired?
must you have expired?
must she have expired?
must we have expired?
must you have expired?
must they have expired? 	must I have been expiring?
must you have been expiring?
must she have been expiring?
must we have been expiring?
must you have been expiring?
must they have been expiring? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not expire?
must you not expire?
must she not expire?
must we not expire?
must you not expire?
must they not expire? 	must I not be expiring?
must you not be expiring?
must she not be expiring?
must we not be expiring?
must you not be expiring?
must they not be expiring? 	must I not have expired?
must you not have expired?
must she not have expired?
must we not have expired?
must you not have expired?
must they not have expired? 	must I not have been expiring?
must you not have been expiring?
must she not have been expiring?
must we not have been expiring?
must you not have been expiring?
must they not have been expiring?