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 might not tighten
you might not tighten
she might not tighten
we might not tighten
you might not tighten
they might not tighten 	I might not be tightening
you might not be tightening
she might not be tightening
we might not be tightening
you might not be tightening
they might not be tightening	I might not have tightened
you might not have tightened
she might not have tightened
we might not have tightened
you might not have tightened
they might not have tightened	I might not have been tightening
you might not have been tightening
she might not have been tightening
we might not have been tightening
you might not have been tightening
they might not 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 	
might I not tighten?
might you not tighten?
might she not tighten?
might we not tighten?
might you not tighten?
might they not tighten? 	might I not be tightening?
might you not be tightening?
might she not be tightening?
might we not be tightening?
might you not be tightening?
might they not be tightening? 	might I not have tightened?
might you not have tightened?
might she not have tightened?
might we not have tightened?
might you not have tightened?
might they not have tightened? 	might I not have been tightening?
might you not have been tightening?
might she not have been tightening?
might we not have been tightening?
might you not have been tightening?
might they not have been tightening?