must relapse
Verbe régulier : relapse - relapsed- relapsed
Traduction française : rechuter - retomber 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must relapse
you must relapse
he must relapse
we must relapse
you must relapse
they must relapse 	I must be relapsing
you must be relapsing
he must be relapsing
we must be relapsing
you must be relapsing
they must be relapsing	I must have relapsed
you must have relapsed
he must have relapsed
we must have relapsed
you must have relapsed
they must have relapsed	I must have been relapsing
you must have been relapsing
he must have been relapsing
we must have been relapsing
you must have been relapsing
they must have been relapsing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not relapse
you must not relapse
he must not relapse
we must not relapse
you must not relapse
they must not relapse 	I must not be relapsing
you must not be relapsing
he must not be relapsing
we must not be relapsing
you must not be relapsing
they must not be relapsing	I must not have relapsed
you must not have relapsed
he must not have relapsed
we must not have relapsed
you must not have relapsed
they must not have relapsed	I must not have been relapsing
you must not have been relapsing
he must not have been relapsing
we must not have been relapsing
you must not have been relapsing
they must not have been relapsing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I relapse?
must you relapse?
must he relapse?
must we relapse?
must you relapse?
must they relapse? 	must I be relapsing?
must you be relapsing?
must he be relapsing?
must we be relapsing?
must you be relapsing?
must they be relapsing? 	must I have relapsed?
must you have relapsed?
must he have relapsed?
must we have relapsed?
must you have relapsed?
must they have relapsed? 	must I have been relapsing?
must you have been relapsing?
must he have been relapsing?
must we have been relapsing?
must you have been relapsing?
must they have been relapsing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not relapse?
must you not relapse?
must he not relapse?
must we not relapse?
must you not relapse?
must they not relapse? 	must I not be relapsing?
must you not be relapsing?
must he not be relapsing?
must we not be relapsing?
must you not be relapsing?
must they not be relapsing? 	must I not have relapsed?
must you not have relapsed?
must he not have relapsed?
must we not have relapsed?
must you not have relapsed?
must they not have relapsed? 	must I not have been relapsing?
must you not have been relapsing?
must he not have been relapsing?
must we not have been relapsing?
must you not have been relapsing?
must they not have been relapsing?