English verb conjugation
TO TOUGHEN

Regular verb: toughen - toughened - toughened

Indicative

Present	Present continuous	Preterite	Preterite continuous
don't I toughen? don't you toughen? doesn't she toughen? don't we toughen? don't you toughen? don't they toughen?	am I not toughening? aren't you toughening? isn't she toughening? aren't we toughening? aren't you toughening? aren't they toughening?	didn't I toughen? didn't you toughen? didn't she toughen? didn't we toughen? didn't you toughen? didn't they toughen?	wasn't I toughening? weren't you toughening? wasn't she toughening? weren't we toughening? weren't you toughening? weren't they toughening?
Present perfect	Present perfect continuous	Pluperfect	Pluperfect continuous
haven't I toughened? haven't you toughened? hasn't she toughened? haven't we toughened? haven't you toughened? haven't they toughened?	haven't I been toughening? haven't you been toughening? hasn't she been toughening? haven't we been toughening? haven't you been toughening? haven't they been toughening?	hadn't I toughened? hadn't you toughened? hadn't she toughened? hadn't we toughened? hadn't you toughened? hadn't they toughened?	hadn't I been toughening? hadn't you been toughening? hadn't she been toughening? hadn't we been toughening? hadn't you been toughening? hadn't they been toughening?
Future	Future continuous	Future perfect	Future perfect continuous
won't I toughen? won't you toughen? won't she toughen? won't we toughen? won't you toughen? won't they toughen?	won't I be toughening? won't you be toughening? won't she be toughening? won't we be toughening? won't you be toughening? won't they be toughening?	won't I have toughened? won't you have toughened? won't she have toughened? won't we have toughened? won't you have toughened? won't they have toughened?	won't I have been toughening? won't you have been toughening? won't she have been toughening? won't we have been toughening? won't you have been toughening? won't they have been toughening?

Conditional

Present	Present continuous	Past	Past continuous
wouldn't I toughen? wouldn't you toughen? wouldn't she toughen? wouldn't we toughen? wouldn't you toughen? wouldn't they toughen?	wouldn't I be toughening? wouldn't you be toughening? wouldn't she be toughening? wouldn't we be toughening? wouldn't you be toughening? wouldn't they be toughening?	wouldn't I have toughened? wouldn't you have toughened? wouldn't she have toughened? wouldn't we have toughened? wouldn't you have toughened? wouldn't they have toughened?	wouldn't I have been toughening? wouldn't you have been toughening? wouldn't she have been toughening? wouldn't we have been toughening? wouldn't you have been toughening? wouldn't they have been toughening?

Infinitive

Imperative

Infinitive		Imperative
to toughen		- - -

Participle

Present	Past
toughening	toughened