might tighten
Verbo regular: tighten - tightened- tightened

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I might tighten
you might tighten
she might tighten
we might tighten
you might tighten
they might tighten 	I might be tightening
you might be tightening
she might be tightening
we might be tightening
you might be tightening
they might be tightening	I might have tightened
you might have tightened
she 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
she might have been tightening
we might have been tightening
you might have been tightening
they might have been tightening	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mightn't tighten
you mightn't tighten
she 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
she mightn't be tightening
we mightn't be tightening
you mightn't be tightening
they mightn't be tightening	I mightn't have tightened
you mightn't have tightened
she 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
she mightn't have been tightening
we mightn't have been tightening
you mightn't have been tightening
they mightn't have been tightening	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
might I tighten?
might you tighten?
might she tighten?
might we tighten?
might you tighten?
might they tighten? 	might I be tightening?
might you be tightening?
might she be tightening?
might we be tightening?
might you be tightening?
might they be tightening? 	might I have tightened?
might you have tightened?
might she 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 she have been tightening?
might we have been tightening?
might you have been tightening?
might they have been tightening? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mightn't I tighten?
mightn't you tighten?
mightn't she 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 she be tightening?
mightn't we be tightening?
mightn't you be tightening?
mightn't they be tightening? 	mightn't I have tightened?
mightn't you have tightened?
mightn't she 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 she have been tightening?
mightn't we have been tightening?
mightn't you have been tightening?
mightn't they have been tightening?