could litter
Verbe régulier : litter - littered- littered
Traduction française : laisser des détritus dans 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could litter
you could litter
he could litter
we could litter
you could litter
they could litter 	I could be littering
you could be littering
he could be littering
we could be littering
you could be littering
they could be littering	I could have littered
you could have littered
he could have littered
we could have littered
you could have littered
they could have littered	I could have been littering
you could have been littering
he could have been littering
we could have been littering
you could have been littering
they could have been littering	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't litter
you couldn't litter
he couldn't litter
we couldn't litter
you couldn't litter
they couldn't litter 	I couldn't be littering
you couldn't be littering
he couldn't be littering
we couldn't be littering
you couldn't be littering
they couldn't be littering	I couldn't have littered
you couldn't have littered
he couldn't have littered
we couldn't have littered
you couldn't have littered
they couldn't have littered	I couldn't have been littering
you couldn't have been littering
he couldn't have been littering
we couldn't have been littering
you couldn't have been littering
they couldn't have been littering	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I litter?
could you litter?
could he litter?
could we litter?
could you litter?
could they litter? 	could I be littering?
could you be littering?
could he be littering?
could we be littering?
could you be littering?
could they be littering? 	could I have littered?
could you have littered?
could he have littered?
could we have littered?
could you have littered?
could they have littered? 	could I have been littering?
could you have been littering?
could he have been littering?
could we have been littering?
could you have been littering?
could they have been littering? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I litter?
couldn't you litter?
couldn't he litter?
couldn't we litter?
couldn't you litter?
couldn't they litter? 	couldn't I be littering?
couldn't you be littering?
couldn't he be littering?
couldn't we be littering?
couldn't you be littering?
couldn't they be littering? 	couldn't I have littered?
couldn't you have littered?
couldn't he have littered?
couldn't we have littered?
couldn't you have littered?
couldn't they have littered? 	couldn't I have been littering?
couldn't you have been littering?
couldn't he have been littering?
couldn't we have been littering?
couldn't you have been littering?
couldn't they have been littering?