could slip
Verbe régulier : slip - slipped- slipped
Traduction française : glisser - glisser 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could slip
you could slip
he could slip
we could slip
you could slip
they could slip 	I could be slipping
you could be slipping
he could be slipping
we could be slipping
you could be slipping
they could be slipping	I could have slipped
you could have slipped
he could have slipped
we could have slipped
you could have slipped
they could have slipped	I could have been slipping
you could have been slipping
he could have been slipping
we could have been slipping
you could have been slipping
they could have been slipping	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't slip
you couldn't slip
he couldn't slip
we couldn't slip
you couldn't slip
they couldn't slip 	I couldn't be slipping
you couldn't be slipping
he couldn't be slipping
we couldn't be slipping
you couldn't be slipping
they couldn't be slipping	I couldn't have slipped
you couldn't have slipped
he couldn't have slipped
we couldn't have slipped
you couldn't have slipped
they couldn't have slipped	I couldn't have been slipping
you couldn't have been slipping
he couldn't have been slipping
we couldn't have been slipping
you couldn't have been slipping
they couldn't have been slipping	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I slip?
could you slip?
could he slip?
could we slip?
could you slip?
could they slip? 	could I be slipping?
could you be slipping?
could he be slipping?
could we be slipping?
could you be slipping?
could they be slipping? 	could I have slipped?
could you have slipped?
could he have slipped?
could we have slipped?
could you have slipped?
could they have slipped? 	could I have been slipping?
could you have been slipping?
could he have been slipping?
could we have been slipping?
could you have been slipping?
could they have been slipping? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I slip?
couldn't you slip?
couldn't he slip?
couldn't we slip?
couldn't you slip?
couldn't they slip? 	couldn't I be slipping?
couldn't you be slipping?
couldn't he be slipping?
couldn't we be slipping?
couldn't you be slipping?
couldn't they be slipping? 	couldn't I have slipped?
couldn't you have slipped?
couldn't he have slipped?
couldn't we have slipped?
couldn't you have slipped?
couldn't they have slipped? 	couldn't I have been slipping?
couldn't you have been slipping?
couldn't he have been slipping?
couldn't we have been slipping?
couldn't you have been slipping?
couldn't they have been slipping?