must elapse
Verbe régulier : elapse - elapsed- elapsed
Traduction française : s'écouler - passer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must elapse
you must elapse
she must elapse
we must elapse
you must elapse
they must elapse 	I must be elapsing
you must be elapsing
she must be elapsing
we must be elapsing
you must be elapsing
they must be elapsing	I must have elapsed
you must have elapsed
she must have elapsed
we must have elapsed
you must have elapsed
they must have elapsed	I must have been elapsing
you must have been elapsing
she must have been elapsing
we must have been elapsing
you must have been elapsing
they must have been elapsing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't elapse
you mustn't elapse
she mustn't elapse
we mustn't elapse
you mustn't elapse
they mustn't elapse 	I mustn't be elapsing
you mustn't be elapsing
she mustn't be elapsing
we mustn't be elapsing
you mustn't be elapsing
they mustn't be elapsing	I mustn't have elapsed
you mustn't have elapsed
she mustn't have elapsed
we mustn't have elapsed
you mustn't have elapsed
they mustn't have elapsed	I mustn't have been elapsing
you mustn't have been elapsing
she mustn't have been elapsing
we mustn't have been elapsing
you mustn't have been elapsing
they mustn't have been elapsing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I elapse?
must you elapse?
must she elapse?
must we elapse?
must you elapse?
must they elapse? 	must I be elapsing?
must you be elapsing?
must she be elapsing?
must we be elapsing?
must you be elapsing?
must they be elapsing? 	must I have elapsed?
must you have elapsed?
must she have elapsed?
must we have elapsed?
must you have elapsed?
must they have elapsed? 	must I have been elapsing?
must you have been elapsing?
must she have been elapsing?
must we have been elapsing?
must you have been elapsing?
must they have been elapsing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I elapse?
mustn't you elapse?
mustn't she elapse?
mustn't we elapse?
mustn't you elapse?
mustn't they elapse? 	mustn't I be elapsing?
mustn't you be elapsing?
mustn't she be elapsing?
mustn't we be elapsing?
mustn't you be elapsing?
mustn't they be elapsing? 	mustn't I have elapsed?
mustn't you have elapsed?
mustn't she have elapsed?
mustn't we have elapsed?
mustn't you have elapsed?
mustn't they have elapsed? 	mustn't I have been elapsing?
mustn't you have been elapsing?
mustn't she have been elapsing?
mustn't we have been elapsing?
mustn't you have been elapsing?
mustn't they have been elapsing?