can preharden
Verbo regolare: preharden - prehardened- prehardened

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I can preharden
you can preharden
he can preharden
we can preharden
you can preharden
they can preharden 	I can be prehardening
you can be prehardening
he can be prehardening
we can be prehardening
you can be prehardening
they can be prehardening	I can have prehardened
you can have prehardened
he can have prehardened
we can have prehardened
you can have prehardened
they can have prehardened	I can have been prehardening
you can have been prehardening
he can have been prehardening
we can have been prehardening
you can have been prehardening
they can have been prehardening	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I can't preharden
you can't preharden
he can't preharden
we can't preharden
you can't preharden
they can't preharden 	I can't be prehardening
you can't be prehardening
he can't be prehardening
we can't be prehardening
you can't be prehardening
they can't be prehardening	I can't have prehardened
you can't have prehardened
he can't have prehardened
we can't have prehardened
you can't have prehardened
they can't have prehardened	I can't have been prehardening
you can't have been prehardening
he can't have been prehardening
we can't have been prehardening
you can't have been prehardening
they can't have been prehardening	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I preharden?
can you preharden?
can he preharden?
can we preharden?
can you preharden?
can they preharden? 	can I be prehardening?
can you be prehardening?
can he be prehardening?
can we be prehardening?
can you be prehardening?
can they be prehardening? 	can I have prehardened?
can you have prehardened?
can he have prehardened?
can we have prehardened?
can you have prehardened?
can they have prehardened? 	can I have been prehardening?
can you have been prehardening?
can he have been prehardening?
can we have been prehardening?
can you have been prehardening?
can they have been prehardening? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can't I preharden?
can't you preharden?
can't he preharden?
can't we preharden?
can't you preharden?
can't they preharden? 	can't I be prehardening?
can't you be prehardening?
can't he be prehardening?
can't we be prehardening?
can't you be prehardening?
can't they be prehardening? 	can't I have prehardened?
can't you have prehardened?
can't he have prehardened?
can't we have prehardened?
can't you have prehardened?
can't they have prehardened? 	can't I have been prehardening?
can't you have been prehardening?
can't he have been prehardening?
can't we have been prehardening?
can't you have been prehardening?
can't they have been prehardening?