could slipper
Verbe régulier : slipper - slippered- slippered
Traduction française : (UK)-donner une fessée à quelqu'un (avec une pantoufle) 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could slipper
you could slipper
he could slipper
we could slipper
you could slipper
they could slipper 	I could be slippering
you could be slippering
he could be slippering
we could be slippering
you could be slippering
they could be slippering	I could have slippered
you could have slippered
he could have slippered
we could have slippered
you could have slippered
they could have slippered	I could have been slippering
you could have been slippering
he could have been slippering
we could have been slippering
you could have been slippering
they could have been slippering	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't slipper
you couldn't slipper
he couldn't slipper
we couldn't slipper
you couldn't slipper
they couldn't slipper 	I couldn't be slippering
you couldn't be slippering
he couldn't be slippering
we couldn't be slippering
you couldn't be slippering
they couldn't be slippering	I couldn't have slippered
you couldn't have slippered
he couldn't have slippered
we couldn't have slippered
you couldn't have slippered
they couldn't have slippered	I couldn't have been slippering
you couldn't have been slippering
he couldn't have been slippering
we couldn't have been slippering
you couldn't have been slippering
they couldn't have been slippering	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I slipper?
could you slipper?
could he slipper?
could we slipper?
could you slipper?
could they slipper? 	could I be slippering?
could you be slippering?
could he be slippering?
could we be slippering?
could you be slippering?
could they be slippering? 	could I have slippered?
could you have slippered?
could he have slippered?
could we have slippered?
could you have slippered?
could they have slippered? 	could I have been slippering?
could you have been slippering?
could he have been slippering?
could we have been slippering?
could you have been slippering?
could they have been slippering? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I slipper?
couldn't you slipper?
couldn't he slipper?
couldn't we slipper?
couldn't you slipper?
couldn't they slipper? 	couldn't I be slippering?
couldn't you be slippering?
couldn't he be slippering?
couldn't we be slippering?
couldn't you be slippering?
couldn't they be slippering? 	couldn't I have slippered?
couldn't you have slippered?
couldn't he have slippered?
couldn't we have slippered?
couldn't you have slippered?
couldn't they have slippered? 	couldn't I have been slippering?
couldn't you have been slippering?
couldn't he have been slippering?
couldn't we have been slippering?
couldn't you have been slippering?
couldn't they have been slippering?