could descale
Verbe régulier : descale - descaled- descaled
Traduction française : détartrer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could descale
you could descale
he could descale
we could descale
you could descale
they could descale 	I could be descaling
you could be descaling
he could be descaling
we could be descaling
you could be descaling
they could be descaling	I could have descaled
you could have descaled
he could have descaled
we could have descaled
you could have descaled
they could have descaled	I could have been descaling
you could have been descaling
he could have been descaling
we could have been descaling
you could have been descaling
they could have been descaling	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not descale
you could not descale
he could not descale
we could not descale
you could not descale
they could not descale 	I could not be descaling
you could not be descaling
he could not be descaling
we could not be descaling
you could not be descaling
they could not be descaling	I could not have descaled
you could not have descaled
he could not have descaled
we could not have descaled
you could not have descaled
they could not have descaled	I could not have been descaling
you could not have been descaling
he could not have been descaling
we could not have been descaling
you could not have been descaling
they could not have been descaling	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I descale?
could you descale?
could he descale?
could we descale?
could you descale?
could they descale? 	could I be descaling?
could you be descaling?
could he be descaling?
could we be descaling?
could you be descaling?
could they be descaling? 	could I have descaled?
could you have descaled?
could he have descaled?
could we have descaled?
could you have descaled?
could they have descaled? 	could I have been descaling?
could you have been descaling?
could he have been descaling?
could we have been descaling?
could you have been descaling?
could they have been descaling? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not descale?
could you not descale?
could he not descale?
could we not descale?
could you not descale?
could they not descale? 	could I not be descaling?
could you not be descaling?
could he not be descaling?
could we not be descaling?
could you not be descaling?
could they not be descaling? 	could I not have descaled?
could you not have descaled?
could he not have descaled?
could we not have descaled?
could you not have descaled?
could they not have descaled? 	could I not have been descaling?
could you not have been descaling?
could he not have been descaling?
could we not have been descaling?
could you not have been descaling?
could they not have been descaling?