English verb conjugation
MIGHT FASTEN

Regular verb: fasten - fastened - fastened

Affirmation

Simple form	V-ing form
I might fasten you might fasten she might fasten we might fasten you might fasten they might fasten	I might be fastening you might be fastening she might be fastening we might be fastening you might be fastening they might be fastening
Perfect	V-ing perfect
I might have fastened you might have fastened she might have fastened we might have fastened you might have fastened they might have fastened	I might have been fastening you might have been fastening she might have been fastening we might have been fastening you might have been fastening they might have been fastening

Negation

Simple form	V-ing form
I mightn't fasten you mightn't fasten she mightn't fasten we mightn't fasten you mightn't fasten they mightn't fasten	I mightn't be fastening you mightn't be fastening she mightn't be fastening we mightn't be fastening you mightn't be fastening they mightn't be fastening
Perfect	V-ing perfect
I mightn't have fastened you mightn't have fastened she mightn't have fastened we mightn't have fastened you mightn't have fastened they mightn't have fastened	I mightn't have been fastening you mightn't have been fastening she mightn't have been fastening we mightn't have been fastening you mightn't have been fastening they mightn't have been fastening

Interrogative form

Simple form	V-ing form
might I fasten? might you fasten? might she fasten? might we fasten? might you fasten? might they fasten?	might I be fastening? might you be fastening? might she be fastening? might we be fastening? might you be fastening? might they be fastening?
Perfect	V-ing perfect
might I have fastened? might you have fastened? might she have fastened? might we have fastened? might you have fastened? might they have fastened?	might I have been fastening? might you have been fastening? might she have been fastening? might we have been fastening? might you have been fastening? might they have been fastening?

Interro-negative form

Simple form	V-ing form
mightn't I fasten? mightn't you fasten? mightn't she fasten? mightn't we fasten? mightn't you fasten? mightn't they fasten?	mightn't I be fastening? mightn't you be fastening? mightn't she be fastening? mightn't we be fastening? mightn't you be fastening? mightn't they be fastening?
Perfect	V-ing perfect
mightn't I have fastened? mightn't you have fastened? mightn't she have fastened? mightn't we have fastened? mightn't you have fastened? mightn't they have fastened?	mightn't I have been fastening? mightn't you have been fastening? mightn't she have been fastening? mightn't we have been fastening? mightn't you have been fastening? mightn't they have been fastening?