could overharden
Verbe régulier : overharden - overhardened- overhardened

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could overharden
you could overharden
she could overharden
we could overharden
you could overharden
they could overharden 	I could be overhardening
you could be overhardening
she could be overhardening
we could be overhardening
you could be overhardening
they could be overhardening	I could have overhardened
you could have overhardened
she could have overhardened
we could have overhardened
you could have overhardened
they could have overhardened	I could have been overhardening
you could have been overhardening
she could have been overhardening
we could have been overhardening
you could have been overhardening
they could have been overhardening	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not overharden
you could not overharden
she could not overharden
we could not overharden
you could not overharden
they could not overharden 	I could not be overhardening
you could not be overhardening
she could not be overhardening
we could not be overhardening
you could not be overhardening
they could not be overhardening	I could not have overhardened
you could not have overhardened
she could not have overhardened
we could not have overhardened
you could not have overhardened
they could not have overhardened	I could not have been overhardening
you could not have been overhardening
she could not have been overhardening
we could not have been overhardening
you could not have been overhardening
they could not have been overhardening	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I overharden?
could you overharden?
could she overharden?
could we overharden?
could you overharden?
could they overharden? 	could I be overhardening?
could you be overhardening?
could she be overhardening?
could we be overhardening?
could you be overhardening?
could they be overhardening? 	could I have overhardened?
could you have overhardened?
could she have overhardened?
could we have overhardened?
could you have overhardened?
could they have overhardened? 	could I have been overhardening?
could you have been overhardening?
could she have been overhardening?
could we have been overhardening?
could you have been overhardening?
could they have been overhardening? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not overharden?
could you not overharden?
could she not overharden?
could we not overharden?
could you not overharden?
could they not overharden? 	could I not be overhardening?
could you not be overhardening?
could she not be overhardening?
could we not be overhardening?
could you not be overhardening?
could they not be overhardening? 	could I not have overhardened?
could you not have overhardened?
could she not have overhardened?
could we not have overhardened?
could you not have overhardened?
could they not have overhardened? 	could I not have been overhardening?
could you not have been overhardening?
could she not have been overhardening?
could we not have been overhardening?
could you not have been overhardening?
could they not have been overhardening?