English verb conjugation
TO TIGHTEN

Regular verb: tighten - tightened - tightened

Indicative

Present	Present continuous	Preterite	Preterite continuous
don't I tighten? don't you tighten? doesn't he tighten? don't we tighten? don't you tighten? don't they tighten?	am I not tightening? aren't you tightening? isn't he tightening? aren't we tightening? aren't you tightening? aren't they tightening?	didn't I tighten? didn't you tighten? didn't he tighten? didn't we tighten? didn't you tighten? didn't they tighten?	wasn't I tightening? weren't you tightening? wasn't he tightening? weren't we tightening? weren't you tightening? weren't they tightening?
Present perfect	Present perfect continuous	Pluperfect	Pluperfect continuous
haven't I tightened? haven't you tightened? hasn't he tightened? haven't we tightened? haven't you tightened? haven't they tightened?	haven't I been tightening? haven't you been tightening? hasn't he been tightening? haven't we been tightening? haven't you been tightening? haven't they been tightening?	hadn't I tightened? hadn't you tightened? hadn't he tightened? hadn't we tightened? hadn't you tightened? hadn't they tightened?	hadn't I been tightening? hadn't you been tightening? hadn't he been tightening? hadn't we been tightening? hadn't you been tightening? hadn't they been tightening?
Future	Future continuous	Future perfect	Future perfect continuous
won't I tighten? won't you tighten? won't he tighten? won't we tighten? won't you tighten? won't they tighten?	won't I be tightening? won't you be tightening? won't he be tightening? won't we be tightening? won't you be tightening? won't they be tightening?	won't I have tightened? won't you have tightened? won't he have tightened? won't we have tightened? won't you have tightened? won't they have tightened?	won't I have been tightening? won't you have been tightening? won't he have been tightening? won't we have been tightening? won't you have been tightening? won't they have been tightening?

Conditional

Present	Present continuous	Past	Past continuous
wouldn't I tighten? wouldn't you tighten? wouldn't he tighten? wouldn't we tighten? wouldn't you tighten? wouldn't they tighten?	wouldn't I be tightening? wouldn't you be tightening? wouldn't he be tightening? wouldn't we be tightening? wouldn't you be tightening? wouldn't they be tightening?	wouldn't I have tightened? wouldn't you have tightened? wouldn't he have tightened? wouldn't we have tightened? wouldn't you have tightened? wouldn't they have tightened?	wouldn't I have been tightening? wouldn't you have been tightening? wouldn't he have been tightening? wouldn't we have been tightening? wouldn't you have been tightening? wouldn't they have been tightening?

Infinitive

Imperative

Infinitive		Imperative
to tighten		- - -

Participle

Present	Past
tightening	tightened