could slipcover
Verbe régulier : slipcover - slipcovered- slipcovered

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could slipcover
you could slipcover
he could slipcover
we could slipcover
you could slipcover
they could slipcover 	I could be slipcovering
you could be slipcovering
he could be slipcovering
we could be slipcovering
you could be slipcovering
they could be slipcovering	I could have slipcovered
you could have slipcovered
he could have slipcovered
we could have slipcovered
you could have slipcovered
they could have slipcovered	I could have been slipcovering
you could have been slipcovering
he could have been slipcovering
we could have been slipcovering
you could have been slipcovering
they could have been slipcovering	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not slipcover
you could not slipcover
he could not slipcover
we could not slipcover
you could not slipcover
they could not slipcover 	I could not be slipcovering
you could not be slipcovering
he could not be slipcovering
we could not be slipcovering
you could not be slipcovering
they could not be slipcovering	I could not have slipcovered
you could not have slipcovered
he could not have slipcovered
we could not have slipcovered
you could not have slipcovered
they could not have slipcovered	I could not have been slipcovering
you could not have been slipcovering
he could not have been slipcovering
we could not have been slipcovering
you could not have been slipcovering
they could not have been slipcovering	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I slipcover?
could you slipcover?
could he slipcover?
could we slipcover?
could you slipcover?
could they slipcover? 	could I be slipcovering?
could you be slipcovering?
could he be slipcovering?
could we be slipcovering?
could you be slipcovering?
could they be slipcovering? 	could I have slipcovered?
could you have slipcovered?
could he have slipcovered?
could we have slipcovered?
could you have slipcovered?
could they have slipcovered? 	could I have been slipcovering?
could you have been slipcovering?
could he have been slipcovering?
could we have been slipcovering?
could you have been slipcovering?
could they have been slipcovering? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not slipcover?
could you not slipcover?
could he not slipcover?
could we not slipcover?
could you not slipcover?
could they not slipcover? 	could I not be slipcovering?
could you not be slipcovering?
could he not be slipcovering?
could we not be slipcovering?
could you not be slipcovering?
could they not be slipcovering? 	could I not have slipcovered?
could you not have slipcovered?
could he not have slipcovered?
could we not have slipcovered?
could you not have slipcovered?
could they not have slipcovered? 	could I not have been slipcovering?
could you not have been slipcovering?
could he not have been slipcovering?
could we not have been slipcovering?
could you not have been slipcovering?
could they not have been slipcovering?