should undervalue
Verbo regular: undervalue - undervalued- undervalued

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should undervalue
you should undervalue
he should undervalue
we should undervalue
you should undervalue
they should undervalue 	I should be undervaluing
you should be undervaluing
he should be undervaluing
we should be undervaluing
you should be undervaluing
they should be undervaluing	I should have undervalued
you should have undervalued
he should have undervalued
we should have undervalued
you should have undervalued
they should have undervalued	I should have been undervaluing
you should have been undervaluing
he should have been undervaluing
we should have been undervaluing
you should have been undervaluing
they should have been undervaluing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should not undervalue
you should not undervalue
he should not undervalue
we should not undervalue
you should not undervalue
they should not undervalue 	I should not be undervaluing
you should not be undervaluing
he should not be undervaluing
we should not be undervaluing
you should not be undervaluing
they should not be undervaluing	I should not have undervalued
you should not have undervalued
he should not have undervalued
we should not have undervalued
you should not have undervalued
they should not have undervalued	I should not have been undervaluing
you should not have been undervaluing
he should not have been undervaluing
we should not have been undervaluing
you should not have been undervaluing
they should not have been undervaluing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I undervalue?
should you undervalue?
should he undervalue?
should we undervalue?
should you undervalue?
should they undervalue? 	should I be undervaluing?
should you be undervaluing?
should he be undervaluing?
should we be undervaluing?
should you be undervaluing?
should they be undervaluing? 	should I have undervalued?
should you have undervalued?
should he have undervalued?
should we have undervalued?
should you have undervalued?
should they have undervalued? 	should I have been undervaluing?
should you have been undervaluing?
should he have been undervaluing?
should we have been undervaluing?
should you have been undervaluing?
should they have been undervaluing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I not undervalue?
should you not undervalue?
should he not undervalue?
should we not undervalue?
should you not undervalue?
should they not undervalue? 	should I not be undervaluing?
should you not be undervaluing?
should he not be undervaluing?
should we not be undervaluing?
should you not be undervaluing?
should they not be undervaluing? 	should I not have undervalued?
should you not have undervalued?
should he not have undervalued?
should we not have undervalued?
should you not have undervalued?
should they not have undervalued? 	should I not have been undervaluing?
should you not have been undervaluing?
should he not have been undervaluing?
should we not have been undervaluing?
should you not have been undervaluing?
should they not have been undervaluing?