could unload
Verbo regular: unload - unloaded- unloaded

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could unload
you could unload
he could unload
we could unload
you could unload
they could unload 	I could be unloading
you could be unloading
he could be unloading
we could be unloading
you could be unloading
they could be unloading	I could have unloaded
you could have unloaded
he could have unloaded
we could have unloaded
you could have unloaded
they could have unloaded	I could have been unloading
you could have been unloading
he could have been unloading
we could have been unloading
you could have been unloading
they could have been unloading	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not unload
you could not unload
he could not unload
we could not unload
you could not unload
they could not unload 	I could not be unloading
you could not be unloading
he could not be unloading
we could not be unloading
you could not be unloading
they could not be unloading	I could not have unloaded
you could not have unloaded
he could not have unloaded
we could not have unloaded
you could not have unloaded
they could not have unloaded	I could not have been unloading
you could not have been unloading
he could not have been unloading
we could not have been unloading
you could not have been unloading
they could not have been unloading	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I unload?
could you unload?
could he unload?
could we unload?
could you unload?
could they unload? 	could I be unloading?
could you be unloading?
could he be unloading?
could we be unloading?
could you be unloading?
could they be unloading? 	could I have unloaded?
could you have unloaded?
could he have unloaded?
could we have unloaded?
could you have unloaded?
could they have unloaded? 	could I have been unloading?
could you have been unloading?
could he have been unloading?
could we have been unloading?
could you have been unloading?
could they have been unloading? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not unload?
could you not unload?
could he not unload?
could we not unload?
could you not unload?
could they not unload? 	could I not be unloading?
could you not be unloading?
could he not be unloading?
could we not be unloading?
could you not be unloading?
could they not be unloading? 	could I not have unloaded?
could you not have unloaded?
could he not have unloaded?
could we not have unloaded?
could you not have unloaded?
could they not have unloaded? 	could I not have been unloading?
could you not have been unloading?
could he not have been unloading?
could we not have been unloading?
could you not have been unloading?
could they not have been unloading?