English verb conjugation
TO TIGHTEN

Regular verb: tighten - tightened - tightened

Indicative

Present	Present continuous	Preterite	Preterite continuous
do I tighten? do you tighten? does she tighten? do we tighten? do you tighten? do they tighten?	am I tightening? are you tightening? is she tightening? are we tightening? are you tightening? are they tightening?	did I tighten? did you tighten? did she tighten? did we tighten? did you tighten? did they tighten?	was I tightening? were you tightening? was she tightening? were we tightening? were you tightening? were they tightening?
Present perfect	Present perfect continuous	Pluperfect	Pluperfect continuous
have I tightened? have you tightened? has she tightened? have we tightened? have you tightened? have they tightened?	have I been tightening? have you been tightening? has she been tightening? have we been tightening? have you been tightening? have they been tightening?	had I tightened? had you tightened? had she tightened? had we tightened? had you tightened? had they tightened?	had I been tightening? had you been tightening? had she been tightening? had we been tightening? had you been tightening? had they been tightening?
Future	Future continuous	Future perfect	Future perfect continuous
will I tighten? will you tighten? will she tighten? will we tighten? will you tighten? will they tighten?	will I be tightening? will you be tightening? will she be tightening? will we be tightening? will you be tightening? will they be tightening?	will I have tightened? will you have tightened? will she have tightened? will we have tightened? will you have tightened? will they have tightened?	will I have been tightening? will you have been tightening? will she have been tightening? will we have been tightening? will you have been tightening? will they have been tightening?

Conditional

Present	Present continuous	Past	Past continuous
would I tighten? would you tighten? would she tighten? would we tighten? would you tighten? would they tighten?	would I be tightening? would you be tightening? would she be tightening? would we be tightening? would you be tightening? would they be tightening?	would I have tightened? would you have tightened? would she have tightened? would we have tightened? would you have tightened? would they have tightened?	would I have been tightening? would you have been tightening? would she have been tightening? would we have been tightening? would you have been tightening? would they have been tightening?

Infinitive

Imperative

Infinitive		Imperative
to tighten		- - -

Participle

Present	Past
tightening	tightened