could impoverish
Verbo regular: impoverish - impoverished- impoverished

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could impoverish
you could impoverish
he could impoverish
we could impoverish
you could impoverish
they could impoverish 	I could be impoverishing
you could be impoverishing
he could be impoverishing
we could be impoverishing
you could be impoverishing
they could be impoverishing	I could have impoverished
you could have impoverished
he could have impoverished
we could have impoverished
you could have impoverished
they could have impoverished	I could have been impoverishing
you could have been impoverishing
he could have been impoverishing
we could have been impoverishing
you could have been impoverishing
they could have been impoverishing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not impoverish
you could not impoverish
he could not impoverish
we could not impoverish
you could not impoverish
they could not impoverish 	I could not be impoverishing
you could not be impoverishing
he could not be impoverishing
we could not be impoverishing
you could not be impoverishing
they could not be impoverishing	I could not have impoverished
you could not have impoverished
he could not have impoverished
we could not have impoverished
you could not have impoverished
they could not have impoverished	I could not have been impoverishing
you could not have been impoverishing
he could not have been impoverishing
we could not have been impoverishing
you could not have been impoverishing
they could not have been impoverishing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I impoverish?
could you impoverish?
could he impoverish?
could we impoverish?
could you impoverish?
could they impoverish? 	could I be impoverishing?
could you be impoverishing?
could he be impoverishing?
could we be impoverishing?
could you be impoverishing?
could they be impoverishing? 	could I have impoverished?
could you have impoverished?
could he have impoverished?
could we have impoverished?
could you have impoverished?
could they have impoverished? 	could I have been impoverishing?
could you have been impoverishing?
could he have been impoverishing?
could we have been impoverishing?
could you have been impoverishing?
could they have been impoverishing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not impoverish?
could you not impoverish?
could he not impoverish?
could we not impoverish?
could you not impoverish?
could they not impoverish? 	could I not be impoverishing?
could you not be impoverishing?
could he not be impoverishing?
could we not be impoverishing?
could you not be impoverishing?
could they not be impoverishing? 	could I not have impoverished?
could you not have impoverished?
could he not have impoverished?
could we not have impoverished?
could you not have impoverished?
could they not have impoverished? 	could I not have been impoverishing?
could you not have been impoverishing?
could he not have been impoverishing?
could we not have been impoverishing?
could you not have been impoverishing?
could they not have been impoverishing?