can overharden
Verbo regular: overharden - overhardened- overhardened

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can overharden
you can overharden
he can overharden
we can overharden
you can overharden
they can overharden 	I can be overhardening
you can be overhardening
he can be overhardening
we can be overhardening
you can be overhardening
they can be overhardening	I can have overhardened
you can have overhardened
he can have overhardened
we can have overhardened
you can have overhardened
they can have overhardened	I can have been overhardening
you can have been overhardening
he can have been overhardening
we can have been overhardening
you can have been overhardening
they can have been overhardening	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can't overharden
you can't overharden
he can't overharden
we can't overharden
you can't overharden
they can't overharden 	I can't be overhardening
you can't be overhardening
he can't be overhardening
we can't be overhardening
you can't be overhardening
they can't be overhardening	I can't have overhardened
you can't have overhardened
he can't have overhardened
we can't have overhardened
you can't have overhardened
they can't have overhardened	I can't have been overhardening
you can't have been overhardening
he can't have been overhardening
we can't have been overhardening
you can't have been overhardening
they can't have been overhardening	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I overharden?
can you overharden?
can he overharden?
can we overharden?
can you overharden?
can they overharden? 	can I be overhardening?
can you be overhardening?
can he be overhardening?
can we be overhardening?
can you be overhardening?
can they be overhardening? 	can I have overhardened?
can you have overhardened?
can he have overhardened?
can we have overhardened?
can you have overhardened?
can they have overhardened? 	can I have been overhardening?
can you have been overhardening?
can he have been overhardening?
can we have been overhardening?
can you have been overhardening?
can they have been overhardening? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can't I overharden?
can't you overharden?
can't he overharden?
can't we overharden?
can't you overharden?
can't they overharden? 	can't I be overhardening?
can't you be overhardening?
can't he be overhardening?
can't we be overhardening?
can't you be overhardening?
can't they be overhardening? 	can't I have overhardened?
can't you have overhardened?
can't he have overhardened?
can't we have overhardened?
can't you have overhardened?
can't they have overhardened? 	can't I have been overhardening?
can't you have been overhardening?
can't he have been overhardening?
can't we have been overhardening?
can't you have been overhardening?
can't they have been overhardening?