can underestimate
Verbo regular: underestimate - underestimated- underestimated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can underestimate
you can underestimate
he can underestimate
we can underestimate
you can underestimate
they can underestimate 	I can be underestimating
you can be underestimating
he can be underestimating
we can be underestimating
you can be underestimating
they can be underestimating	I can have underestimated
you can have underestimated
he can have underestimated
we can have underestimated
you can have underestimated
they can have underestimated	I can have been underestimating
you can have been underestimating
he can have been underestimating
we can have been underestimating
you can have been underestimating
they can have been underestimating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot underestimate
you cannot underestimate
he cannot underestimate
we cannot underestimate
you cannot underestimate
they cannot underestimate 	I cannot be underestimating
you cannot be underestimating
he cannot be underestimating
we cannot be underestimating
you cannot be underestimating
they cannot be underestimating	I cannot have underestimated
you cannot have underestimated
he cannot have underestimated
we cannot have underestimated
you cannot have underestimated
they cannot have underestimated	I cannot have been underestimating
you cannot have been underestimating
he cannot have been underestimating
we cannot have been underestimating
you cannot have been underestimating
they cannot have been underestimating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I underestimate?
can you underestimate?
can he underestimate?
can we underestimate?
can you underestimate?
can they underestimate? 	can I be underestimating?
can you be underestimating?
can he be underestimating?
can we be underestimating?
can you be underestimating?
can they be underestimating? 	can I have underestimated?
can you have underestimated?
can he have underestimated?
can we have underestimated?
can you have underestimated?
can they have underestimated? 	can I have been underestimating?
can you have been underestimating?
can he have been underestimating?
can we have been underestimating?
can you have been underestimating?
can they have been underestimating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not underestimate?
can you not underestimate?
can he not underestimate?
can we not underestimate?
can you not underestimate?
can they not underestimate? 	can I not be underestimating?
can you not be underestimating?
can he not be underestimating?
can we not be underestimating?
can you not be underestimating?
can they not be underestimating? 	can I not have underestimated?
can you not have underestimated?
can he not have underestimated?
can we not have underestimated?
can you not have underestimated?
can they not have underestimated? 	can I not have been underestimating?
can you not have been underestimating?
can he not have been underestimating?
can we not have been underestimating?
can you not have been underestimating?
can they not have been underestimating?