could understate
Verbo regular: understate - understated- understated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could understate
you could understate
she could understate
we could understate
you could understate
they could understate 	I could be understating
you could be understating
she could be understating
we could be understating
you could be understating
they could be understating	I could have understated
you could have understated
she 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
she could have been understating
we could have been understating
you could have been understating
they could have been understating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't understate
you couldn't understate
she couldn't understate
we couldn't understate
you couldn't understate
they couldn't understate 	I couldn't be understating
you couldn't be understating
she couldn't be understating
we couldn't be understating
you couldn't be understating
they couldn't be understating	I couldn't have understated
you couldn't have understated
she couldn't have understated
we couldn't have understated
you couldn't have understated
they couldn't have understated	I couldn't have been understating
you couldn't have been understating
she couldn't have been understating
we couldn't have been understating
you couldn't have been understating
they couldn't have been understating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I understate?
could you understate?
could she understate?
could we understate?
could you understate?
could they understate? 	could I be understating?
could you be understating?
could she be understating?
could we be understating?
could you be understating?
could they be understating? 	could I have understated?
could you have understated?
could she 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 she have been understating?
could we have been understating?
could you have been understating?
could they have been understating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I understate?
couldn't you understate?
couldn't she understate?
couldn't we understate?
couldn't you understate?
couldn't they understate? 	couldn't I be understating?
couldn't you be understating?
couldn't she be understating?
couldn't we be understating?
couldn't you be understating?
couldn't they be understating? 	couldn't I have understated?
couldn't you have understated?
couldn't she have understated?
couldn't we have understated?
couldn't you have understated?
couldn't they have understated? 	couldn't I have been understating?
couldn't you have been understating?
couldn't she have been understating?
couldn't we have been understating?
couldn't you have been understating?
couldn't they have been understating?