can undervalue
Verbo regular: undervalue - undervalued- undervalued

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

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot undervalue
you cannot undervalue
she cannot undervalue
we cannot undervalue
you cannot undervalue
they cannot undervalue 	I cannot be undervaluing
you cannot be undervaluing
she cannot be undervaluing
we cannot be undervaluing
you cannot be undervaluing
they cannot be undervaluing	I cannot have undervalued
you cannot have undervalued
she cannot have undervalued
we cannot have undervalued
you cannot have undervalued
they cannot have undervalued	I cannot have been undervaluing
you cannot have been undervaluing
she cannot have been undervaluing
we cannot have been undervaluing
you cannot have been undervaluing
they cannot have been undervaluing	

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

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