could derai
Verbe régulier : derai - deraied- deraied
Traduction française : faire dérailler - dérailler 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could derai
you could derai
she could derai
we could derai
you could derai
they could derai 	I could be deraiing
you could be deraiing
she could be deraiing
we could be deraiing
you could be deraiing
they could be deraiing	I could have deraied
you could have deraied
she could have deraied
we could have deraied
you could have deraied
they could have deraied	I could have been deraiing
you could have been deraiing
she could have been deraiing
we could have been deraiing
you could have been deraiing
they could have been deraiing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't derai
you couldn't derai
she couldn't derai
we couldn't derai
you couldn't derai
they couldn't derai 	I couldn't be deraiing
you couldn't be deraiing
she couldn't be deraiing
we couldn't be deraiing
you couldn't be deraiing
they couldn't be deraiing	I couldn't have deraied
you couldn't have deraied
she couldn't have deraied
we couldn't have deraied
you couldn't have deraied
they couldn't have deraied	I couldn't have been deraiing
you couldn't have been deraiing
she couldn't have been deraiing
we couldn't have been deraiing
you couldn't have been deraiing
they couldn't have been deraiing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I derai?
could you derai?
could she derai?
could we derai?
could you derai?
could they derai? 	could I be deraiing?
could you be deraiing?
could she be deraiing?
could we be deraiing?
could you be deraiing?
could they be deraiing? 	could I have deraied?
could you have deraied?
could she have deraied?
could we have deraied?
could you have deraied?
could they have deraied? 	could I have been deraiing?
could you have been deraiing?
could she have been deraiing?
could we have been deraiing?
could you have been deraiing?
could they have been deraiing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I derai?
couldn't you derai?
couldn't she derai?
couldn't we derai?
couldn't you derai?
couldn't they derai? 	couldn't I be deraiing?
couldn't you be deraiing?
couldn't she be deraiing?
couldn't we be deraiing?
couldn't you be deraiing?
couldn't they be deraiing? 	couldn't I have deraied?
couldn't you have deraied?
couldn't she have deraied?
couldn't we have deraied?
couldn't you have deraied?
couldn't they have deraied? 	couldn't I have been deraiing?
couldn't you have been deraiing?
couldn't she have been deraiing?
couldn't we have been deraiing?
couldn't you have been deraiing?
couldn't they have been deraiing?