could breakfast
Verbo regular: breakfast - breakfasted- breakfasted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could breakfast
you could breakfast
he could breakfast
we could breakfast
you could breakfast
they could breakfast 	I could be breakfasting
you could be breakfasting
he could be breakfasting
we could be breakfasting
you could be breakfasting
they could be breakfasting	I could have breakfasted
you could have breakfasted
he could have breakfasted
we could have breakfasted
you could have breakfasted
they could have breakfasted	I could have been breakfasting
you could have been breakfasting
he could have been breakfasting
we could have been breakfasting
you could have been breakfasting
they could have been breakfasting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not breakfast
you could not breakfast
he could not breakfast
we could not breakfast
you could not breakfast
they could not breakfast 	I could not be breakfasting
you could not be breakfasting
he could not be breakfasting
we could not be breakfasting
you could not be breakfasting
they could not be breakfasting	I could not have breakfasted
you could not have breakfasted
he could not have breakfasted
we could not have breakfasted
you could not have breakfasted
they could not have breakfasted	I could not have been breakfasting
you could not have been breakfasting
he could not have been breakfasting
we could not have been breakfasting
you could not have been breakfasting
they could not have been breakfasting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I breakfast?
could you breakfast?
could he breakfast?
could we breakfast?
could you breakfast?
could they breakfast? 	could I be breakfasting?
could you be breakfasting?
could he be breakfasting?
could we be breakfasting?
could you be breakfasting?
could they be breakfasting? 	could I have breakfasted?
could you have breakfasted?
could he have breakfasted?
could we have breakfasted?
could you have breakfasted?
could they have breakfasted? 	could I have been breakfasting?
could you have been breakfasting?
could he have been breakfasting?
could we have been breakfasting?
could you have been breakfasting?
could they have been breakfasting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not breakfast?
could you not breakfast?
could he not breakfast?
could we not breakfast?
could you not breakfast?
could they not breakfast? 	could I not be breakfasting?
could you not be breakfasting?
could he not be breakfasting?
could we not be breakfasting?
could you not be breakfasting?
could they not be breakfasting? 	could I not have breakfasted?
could you not have breakfasted?
could he not have breakfasted?
could we not have breakfasted?
could you not have breakfasted?
could they not have breakfasted? 	could I not have been breakfasting?
could you not have been breakfasting?
could he not have been breakfasting?
could we not have been breakfasting?
could you not have been breakfasting?
could they not have been breakfasting?