English verb conjugation
MIGHT TIGHTEN

Regular verb: tighten - tightened - tightened

Affirmation

Simple form	V-ing form
I might tighten you might tighten he might tighten we might tighten you might tighten they might tighten	I might be tightening you might be tightening he might be tightening we might be tightening you might be tightening they might be tightening
Perfect	V-ing perfect
I might have tightened you might have tightened he might have tightened we might have tightened you might have tightened they might have tightened	I might have been tightening you might have been tightening he might have been tightening we might have been tightening you might have been tightening they might have been tightening

Negation

Simple form	V-ing form
I mightn't tighten you mightn't tighten he mightn't tighten we mightn't tighten you mightn't tighten they mightn't tighten	I mightn't be tightening you mightn't be tightening he mightn't be tightening we mightn't be tightening you mightn't be tightening they mightn't be tightening
Perfect	V-ing perfect
I mightn't have tightened you mightn't have tightened he mightn't have tightened we mightn't have tightened you mightn't have tightened they mightn't have tightened	I mightn't have been tightening you mightn't have been tightening he mightn't have been tightening we mightn't have been tightening you mightn't have been tightening they mightn't have been tightening

Interrogative form

Simple form	V-ing form
might I tighten? might you tighten? might he tighten? might we tighten? might you tighten? might they tighten?	might I be tightening? might you be tightening? might he be tightening? might we be tightening? might you be tightening? might they be tightening?
Perfect	V-ing perfect
might I have tightened? might you have tightened? might he have tightened? might we have tightened? might you have tightened? might they have tightened?	might I have been tightening? might you have been tightening? might he have been tightening? might we have been tightening? might you have been tightening? might they have been tightening?

Interro-negative form

Simple form	V-ing form
mightn't I tighten? mightn't you tighten? mightn't he tighten? mightn't we tighten? mightn't you tighten? mightn't they tighten?	mightn't I be tightening? mightn't you be tightening? mightn't he be tightening? mightn't we be tightening? mightn't you be tightening? mightn't they be tightening?
Perfect	V-ing perfect
mightn't I have tightened? mightn't you have tightened? mightn't he have tightened? mightn't we have tightened? mightn't you have tightened? mightn't they have tightened?	mightn't I have been tightening? mightn't you have been tightening? mightn't he have been tightening? mightn't we have been tightening? mightn't you have been tightening? mightn't they have been tightening?