could crest
Verbo regular: crest - crested- crested

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could crest
you could crest
he could crest
we could crest
you could crest
they could crest 	I could be cresting
you could be cresting
he could be cresting
we could be cresting
you could be cresting
they could be cresting	I could have crested
you could have crested
he could have crested
we could have crested
you could have crested
they could have crested	I could have been cresting
you could have been cresting
he could have been cresting
we could have been cresting
you could have been cresting
they could have been cresting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not crest
you could not crest
he could not crest
we could not crest
you could not crest
they could not crest 	I could not be cresting
you could not be cresting
he could not be cresting
we could not be cresting
you could not be cresting
they could not be cresting	I could not have crested
you could not have crested
he could not have crested
we could not have crested
you could not have crested
they could not have crested	I could not have been cresting
you could not have been cresting
he could not have been cresting
we could not have been cresting
you could not have been cresting
they could not have been cresting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I crest?
could you crest?
could he crest?
could we crest?
could you crest?
could they crest? 	could I be cresting?
could you be cresting?
could he be cresting?
could we be cresting?
could you be cresting?
could they be cresting? 	could I have crested?
could you have crested?
could he have crested?
could we have crested?
could you have crested?
could they have crested? 	could I have been cresting?
could you have been cresting?
could he have been cresting?
could we have been cresting?
could you have been cresting?
could they have been cresting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not crest?
could you not crest?
could he not crest?
could we not crest?
could you not crest?
could they not crest? 	could I not be cresting?
could you not be cresting?
could he not be cresting?
could we not be cresting?
could you not be cresting?
could they not be cresting? 	could I not have crested?
could you not have crested?
could he not have crested?
could we not have crested?
could you not have crested?
could they not have crested? 	could I not have been cresting?
could you not have been cresting?
could he not have been cresting?
could we not have been cresting?
could you not have been cresting?
could they not have been cresting?