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

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

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

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

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