could appreciate
Verbo regular: appreciate - appreciated- appreciated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could appreciate
you could appreciate
he could appreciate
we could appreciate
you could appreciate
they could appreciate 	I could be appreciating
you could be appreciating
he could be appreciating
we could be appreciating
you could be appreciating
they could be appreciating	I could have appreciated
you could have appreciated
he could have appreciated
we could have appreciated
you could have appreciated
they could have appreciated	I could have been appreciating
you could have been appreciating
he could have been appreciating
we could have been appreciating
you could have been appreciating
they could have been appreciating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not appreciate
you could not appreciate
he could not appreciate
we could not appreciate
you could not appreciate
they could not appreciate 	I could not be appreciating
you could not be appreciating
he could not be appreciating
we could not be appreciating
you could not be appreciating
they could not be appreciating	I could not have appreciated
you could not have appreciated
he could not have appreciated
we could not have appreciated
you could not have appreciated
they could not have appreciated	I could not have been appreciating
you could not have been appreciating
he could not have been appreciating
we could not have been appreciating
you could not have been appreciating
they could not have been appreciating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I appreciate?
could you appreciate?
could he appreciate?
could we appreciate?
could you appreciate?
could they appreciate? 	could I be appreciating?
could you be appreciating?
could he be appreciating?
could we be appreciating?
could you be appreciating?
could they be appreciating? 	could I have appreciated?
could you have appreciated?
could he have appreciated?
could we have appreciated?
could you have appreciated?
could they have appreciated? 	could I have been appreciating?
could you have been appreciating?
could he have been appreciating?
could we have been appreciating?
could you have been appreciating?
could they have been appreciating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not appreciate?
could you not appreciate?
could he not appreciate?
could we not appreciate?
could you not appreciate?
could they not appreciate? 	could I not be appreciating?
could you not be appreciating?
could he not be appreciating?
could we not be appreciating?
could you not be appreciating?
could they not be appreciating? 	could I not have appreciated?
could you not have appreciated?
could he not have appreciated?
could we not have appreciated?
could you not have appreciated?
could they not have appreciated? 	could I not have been appreciating?
could you not have been appreciating?
could he not have been appreciating?
could we not have been appreciating?
could you not have been appreciating?
could they not have been appreciating?