could backpack
Verbo regular: backpack - backpacked- backpacked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could backpack
you could backpack
he could backpack
we could backpack
you could backpack
they could backpack 	I could be backpacking
you could be backpacking
he could be backpacking
we could be backpacking
you could be backpacking
they could be backpacking	I could have backpacked
you could have backpacked
he could have backpacked
we could have backpacked
you could have backpacked
they could have backpacked	I could have been backpacking
you could have been backpacking
he could have been backpacking
we could have been backpacking
you could have been backpacking
they could have been backpacking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not backpack
you could not backpack
he could not backpack
we could not backpack
you could not backpack
they could not backpack 	I could not be backpacking
you could not be backpacking
he could not be backpacking
we could not be backpacking
you could not be backpacking
they could not be backpacking	I could not have backpacked
you could not have backpacked
he could not have backpacked
we could not have backpacked
you could not have backpacked
they could not have backpacked	I could not have been backpacking
you could not have been backpacking
he could not have been backpacking
we could not have been backpacking
you could not have been backpacking
they could not have been backpacking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I backpack?
could you backpack?
could he backpack?
could we backpack?
could you backpack?
could they backpack? 	could I be backpacking?
could you be backpacking?
could he be backpacking?
could we be backpacking?
could you be backpacking?
could they be backpacking? 	could I have backpacked?
could you have backpacked?
could he have backpacked?
could we have backpacked?
could you have backpacked?
could they have backpacked? 	could I have been backpacking?
could you have been backpacking?
could he have been backpacking?
could we have been backpacking?
could you have been backpacking?
could they have been backpacking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not backpack?
could you not backpack?
could he not backpack?
could we not backpack?
could you not backpack?
could they not backpack? 	could I not be backpacking?
could you not be backpacking?
could he not be backpacking?
could we not be backpacking?
could you not be backpacking?
could they not be backpacking? 	could I not have backpacked?
could you not have backpacked?
could he not have backpacked?
could we not have backpacked?
could you not have backpacked?
could they not have backpacked? 	could I not have been backpacking?
could you not have been backpacking?
could he not have been backpacking?
could we not have been backpacking?
could you not have been backpacking?
could they not have been backpacking?