could abrade
Verbe régulier : abrade - abraded- abraded

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could abrade
you could abrade
she could abrade
we could abrade
you could abrade
they could abrade 	I could be abrading
you could be abrading
she could be abrading
we could be abrading
you could be abrading
they could be abrading	I could have abraded
you could have abraded
she could have abraded
we could have abraded
you could have abraded
they could have abraded	I could have been abrading
you could have been abrading
she could have been abrading
we could have been abrading
you could have been abrading
they could have been abrading	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't abrade
you couldn't abrade
she couldn't abrade
we couldn't abrade
you couldn't abrade
they couldn't abrade 	I couldn't be abrading
you couldn't be abrading
she couldn't be abrading
we couldn't be abrading
you couldn't be abrading
they couldn't be abrading	I couldn't have abraded
you couldn't have abraded
she couldn't have abraded
we couldn't have abraded
you couldn't have abraded
they couldn't have abraded	I couldn't have been abrading
you couldn't have been abrading
she couldn't have been abrading
we couldn't have been abrading
you couldn't have been abrading
they couldn't have been abrading	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I abrade?
could you abrade?
could she abrade?
could we abrade?
could you abrade?
could they abrade? 	could I be abrading?
could you be abrading?
could she be abrading?
could we be abrading?
could you be abrading?
could they be abrading? 	could I have abraded?
could you have abraded?
could she have abraded?
could we have abraded?
could you have abraded?
could they have abraded? 	could I have been abrading?
could you have been abrading?
could she have been abrading?
could we have been abrading?
could you have been abrading?
could they have been abrading? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I abrade?
couldn't you abrade?
couldn't she abrade?
couldn't we abrade?
couldn't you abrade?
couldn't they abrade? 	couldn't I be abrading?
couldn't you be abrading?
couldn't she be abrading?
couldn't we be abrading?
couldn't you be abrading?
couldn't they be abrading? 	couldn't I have abraded?
couldn't you have abraded?
couldn't she have abraded?
couldn't we have abraded?
couldn't you have abraded?
couldn't they have abraded? 	couldn't I have been abrading?
couldn't you have been abrading?
couldn't she have been abrading?
couldn't we have been abrading?
couldn't you have been abrading?
couldn't they have been abrading?