could understate
Verbo regular: understate - understated- understated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could understate
you could understate
he could understate
we could understate
you could understate
they could understate 	I could be understating
you could be understating
he could be understating
we could be understating
you could be understating
they could be understating	I could have understated
you could have understated
he could have understated
we could have understated
you could have understated
they could have understated	I could have been understating
you could have been understating
he could have been understating
we could have been understating
you could have been understating
they could have been understating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not understate
you could not understate
he could not understate
we could not understate
you could not understate
they could not understate 	I could not be understating
you could not be understating
he could not be understating
we could not be understating
you could not be understating
they could not be understating	I could not have understated
you could not have understated
he could not have understated
we could not have understated
you could not have understated
they could not have understated	I could not have been understating
you could not have been understating
he could not have been understating
we could not have been understating
you could not have been understating
they could not have been understating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I understate?
could you understate?
could he understate?
could we understate?
could you understate?
could they understate? 	could I be understating?
could you be understating?
could he be understating?
could we be understating?
could you be understating?
could they be understating? 	could I have understated?
could you have understated?
could he have understated?
could we have understated?
could you have understated?
could they have understated? 	could I have been understating?
could you have been understating?
could he have been understating?
could we have been understating?
could you have been understating?
could they have been understating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not understate?
could you not understate?
could he not understate?
could we not understate?
could you not understate?
could they not understate? 	could I not be understating?
could you not be understating?
could he not be understating?
could we not be understating?
could you not be understating?
could they not be understating? 	could I not have understated?
could you not have understated?
could he not have understated?
could we not have understated?
could you not have understated?
could they not have understated? 	could I not have been understating?
could you not have been understating?
could he not have been understating?
could we not have been understating?
could you not have been understating?
could they not have been understating?