English verb conjugation
TO TOUGHEN

Regular verb: toughen - toughened - toughened

Indicative

Present	Present continuous	Preterite	Preterite continuous
do I toughen? do you toughen? does he toughen? do we toughen? do you toughen? do they toughen?	am I toughening? are you toughening? is he toughening? are we toughening? are you toughening? are they toughening?	did I toughen? did you toughen? did he toughen? did we toughen? did you toughen? did they toughen?	was I toughening? were you toughening? was he toughening? were we toughening? were you toughening? were they toughening?
Present perfect	Present perfect continuous	Pluperfect	Pluperfect continuous
have I toughened? have you toughened? has he toughened? have we toughened? have you toughened? have they toughened?	have I been toughening? have you been toughening? has he been toughening? have we been toughening? have you been toughening? have they been toughening?	had I toughened? had you toughened? had he toughened? had we toughened? had you toughened? had they toughened?	had I been toughening? had you been toughening? had he been toughening? had we been toughening? had you been toughening? had they been toughening?
Future	Future continuous	Future perfect	Future perfect continuous
will I toughen? will you toughen? will he toughen? will we toughen? will you toughen? will they toughen?	will I be toughening? will you be toughening? will he be toughening? will we be toughening? will you be toughening? will they be toughening?	will I have toughened? will you have toughened? will he have toughened? will we have toughened? will you have toughened? will they have toughened?	will I have been toughening? will you have been toughening? will he have been toughening? will we have been toughening? will you have been toughening? will they have been toughening?

Conditional

Present	Present continuous	Past	Past continuous
would I toughen? would you toughen? would he toughen? would we toughen? would you toughen? would they toughen?	would I be toughening? would you be toughening? would he be toughening? would we be toughening? would you be toughening? would they be toughening?	would I have toughened? would you have toughened? would he have toughened? would we have toughened? would you have toughened? would they have toughened?	would I have been toughening? would you have been toughening? would he have been toughening? would we have been toughening? would you have been toughening? would they have been toughening?

Infinitive

Imperative

Infinitive		Imperative
to toughen		- - -

Participle

Present	Past
toughening	toughened