could ok
Verbe régulier : ok - oked- oked

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could ok
you could ok
he could ok
we could ok
you could ok
they could ok 	I could be oking
you could be oking
he could be oking
we could be oking
you could be oking
they could be oking	I could have oked
you could have oked
he could have oked
we could have oked
you could have oked
they could have oked	I could have been oking
you could have been oking
he could have been oking
we could have been oking
you could have been oking
they could have been oking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't ok
you couldn't ok
he couldn't ok
we couldn't ok
you couldn't ok
they couldn't ok 	I couldn't be oking
you couldn't be oking
he couldn't be oking
we couldn't be oking
you couldn't be oking
they couldn't be oking	I couldn't have oked
you couldn't have oked
he couldn't have oked
we couldn't have oked
you couldn't have oked
they couldn't have oked	I couldn't have been oking
you couldn't have been oking
he couldn't have been oking
we couldn't have been oking
you couldn't have been oking
they couldn't have been oking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I ok?
could you ok?
could he ok?
could we ok?
could you ok?
could they ok? 	could I be oking?
could you be oking?
could he be oking?
could we be oking?
could you be oking?
could they be oking? 	could I have oked?
could you have oked?
could he have oked?
could we have oked?
could you have oked?
could they have oked? 	could I have been oking?
could you have been oking?
could he have been oking?
could we have been oking?
could you have been oking?
could they have been oking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I ok?
couldn't you ok?
couldn't he ok?
couldn't we ok?
couldn't you ok?
couldn't they ok? 	couldn't I be oking?
couldn't you be oking?
couldn't he be oking?
couldn't we be oking?
couldn't you be oking?
couldn't they be oking? 	couldn't I have oked?
couldn't you have oked?
couldn't he have oked?
couldn't we have oked?
couldn't you have oked?
couldn't they have oked? 	couldn't I have been oking?
couldn't you have been oking?
couldn't he have been oking?
couldn't we have been oking?
couldn't you have been oking?
couldn't they have been oking?