English verb conjugation
CAN REHARDEN

Regular verb: reharden - rehardened - rehardened

Affirmation

Simple form	V-ing form
I can reharden you can reharden he can reharden we can reharden you can reharden they can reharden	I can be rehardening you can be rehardening he can be rehardening we can be rehardening you can be rehardening they can be rehardening
Perfect	V-ing perfect
I can have rehardened you can have rehardened he can have rehardened we can have rehardened you can have rehardened they can have rehardened	I can have been rehardening you can have been rehardening he can have been rehardening we can have been rehardening you can have been rehardening they can have been rehardening

Negation

Simple form	V-ing form
I can't reharden you can't reharden he can't reharden we can't reharden you can't reharden they can't reharden	I can't be rehardening you can't be rehardening he can't be rehardening we can't be rehardening you can't be rehardening they can't be rehardening
Perfect	V-ing perfect
I can't have rehardened you can't have rehardened he can't have rehardened we can't have rehardened you can't have rehardened they can't have rehardened	I can't have been rehardening you can't have been rehardening he can't have been rehardening we can't have been rehardening you can't have been rehardening they can't have been rehardening

Interrogative form

Simple form	V-ing form
can I reharden? can you reharden? can he reharden? can we reharden? can you reharden? can they reharden?	can I be rehardening? can you be rehardening? can he be rehardening? can we be rehardening? can you be rehardening? can they be rehardening?
Perfect	V-ing perfect
can I have rehardened? can you have rehardened? can he have rehardened? can we have rehardened? can you have rehardened? can they have rehardened?	can I have been rehardening? can you have been rehardening? can he have been rehardening? can we have been rehardening? can you have been rehardening? can they have been rehardening?

Interro-negative form

Simple form	V-ing form
can't I reharden? can't you reharden? can't he reharden? can't we reharden? can't you reharden? can't they reharden?	can't I be rehardening? can't you be rehardening? can't he be rehardening? can't we be rehardening? can't you be rehardening? can't they be rehardening?
Perfect	V-ing perfect
can't I have rehardened? can't you have rehardened? can't he have rehardened? can't we have rehardened? can't you have rehardened? can't they have rehardened?	can't I have been rehardening? can't you have been rehardening? can't he have been rehardening? can't we have been rehardening? can't you have been rehardening? can't they have been rehardening?