could nitride
Verbe régulier : nitride - nitrided- nitrided

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could nitride
you could nitride
she could nitride
we could nitride
you could nitride
they could nitride 	I could be nitriding
you could be nitriding
she could be nitriding
we could be nitriding
you could be nitriding
they could be nitriding	I could have nitrided
you could have nitrided
she could have nitrided
we could have nitrided
you could have nitrided
they could have nitrided	I could have been nitriding
you could have been nitriding
she could have been nitriding
we could have been nitriding
you could have been nitriding
they could have been nitriding	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't nitride
you couldn't nitride
she couldn't nitride
we couldn't nitride
you couldn't nitride
they couldn't nitride 	I couldn't be nitriding
you couldn't be nitriding
she couldn't be nitriding
we couldn't be nitriding
you couldn't be nitriding
they couldn't be nitriding	I couldn't have nitrided
you couldn't have nitrided
she couldn't have nitrided
we couldn't have nitrided
you couldn't have nitrided
they couldn't have nitrided	I couldn't have been nitriding
you couldn't have been nitriding
she couldn't have been nitriding
we couldn't have been nitriding
you couldn't have been nitriding
they couldn't have been nitriding	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I nitride?
could you nitride?
could she nitride?
could we nitride?
could you nitride?
could they nitride? 	could I be nitriding?
could you be nitriding?
could she be nitriding?
could we be nitriding?
could you be nitriding?
could they be nitriding? 	could I have nitrided?
could you have nitrided?
could she have nitrided?
could we have nitrided?
could you have nitrided?
could they have nitrided? 	could I have been nitriding?
could you have been nitriding?
could she have been nitriding?
could we have been nitriding?
could you have been nitriding?
could they have been nitriding? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I nitride?
couldn't you nitride?
couldn't she nitride?
couldn't we nitride?
couldn't you nitride?
couldn't they nitride? 	couldn't I be nitriding?
couldn't you be nitriding?
couldn't she be nitriding?
couldn't we be nitriding?
couldn't you be nitriding?
couldn't they be nitriding? 	couldn't I have nitrided?
couldn't you have nitrided?
couldn't she have nitrided?
couldn't we have nitrided?
couldn't you have nitrided?
couldn't they have nitrided? 	couldn't I have been nitriding?
couldn't you have been nitriding?
couldn't she have been nitriding?
couldn't we have been nitriding?
couldn't you have been nitriding?
couldn't they have been nitriding?