could crew
Verbo regular: crew - crewed- crewed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could crew
you could crew
he could crew
we could crew
you could crew
they could crew 	I could be crewing
you could be crewing
he could be crewing
we could be crewing
you could be crewing
they could be crewing	I could have crewed
you could have crewed
he could have crewed
we could have crewed
you could have crewed
they could have crewed	I could have been crewing
you could have been crewing
he could have been crewing
we could have been crewing
you could have been crewing
they could have been crewing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not crew
you could not crew
he could not crew
we could not crew
you could not crew
they could not crew 	I could not be crewing
you could not be crewing
he could not be crewing
we could not be crewing
you could not be crewing
they could not be crewing	I could not have crewed
you could not have crewed
he could not have crewed
we could not have crewed
you could not have crewed
they could not have crewed	I could not have been crewing
you could not have been crewing
he could not have been crewing
we could not have been crewing
you could not have been crewing
they could not have been crewing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I crew?
could you crew?
could he crew?
could we crew?
could you crew?
could they crew? 	could I be crewing?
could you be crewing?
could he be crewing?
could we be crewing?
could you be crewing?
could they be crewing? 	could I have crewed?
could you have crewed?
could he have crewed?
could we have crewed?
could you have crewed?
could they have crewed? 	could I have been crewing?
could you have been crewing?
could he have been crewing?
could we have been crewing?
could you have been crewing?
could they have been crewing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not crew?
could you not crew?
could he not crew?
could we not crew?
could you not crew?
could they not crew? 	could I not be crewing?
could you not be crewing?
could he not be crewing?
could we not be crewing?
could you not be crewing?
could they not be crewing? 	could I not have crewed?
could you not have crewed?
could he not have crewed?
could we not have crewed?
could you not have crewed?
could they not have crewed? 	could I not have been crewing?
could you not have been crewing?
could he not have been crewing?
could we not have been crewing?
could you not have been crewing?
could they not have been crewing?