I can pack you can pack she can pack we can pack you can pack they can pack
Forma con V-ing
I can be packing you can be packing she can be packing we can be packing you can be packing they can be packing
Perfecto
I can have packed you can have packed she can have packed we can have packed you can have packed they can have packed
Perfecto con V-ing
I can have been packing you can have been packing she can have been packing we can have been packing you can have been packing they can have been packing
Negación
Forma simple
I cannot pack you cannot pack she cannot pack we cannot pack you cannot pack they cannot pack
Forma con V-ing
I cannot be packing you cannot be packing she cannot be packing we cannot be packing you cannot be packing they cannot be packing
Perfecto
I cannot have packed you cannot have packed she cannot have packed we cannot have packed you cannot have packed they cannot have packed
Perfecto con V-ing
I cannot have been packing you cannot have been packing she cannot have been packing we cannot have been packing you cannot have been packing they cannot have been packing
Forma interrogativa
Forma simple
can I pack? can you pack? can she pack? can we pack? can you pack? can they pack?
Forma con V-ing
can I be packing? can you be packing? can she be packing? can we be packing? can you be packing? can they be packing?
Perfecto
can I have packed? can you have packed? can she have packed? can we have packed? can you have packed? can they have packed?
Perfecto con V-ing
can I have been packing? can you have been packing? can she have been packing? can we have been packing? can you have been packing? can they have been packing?
Forma interro-negativa
Forma simple
can I not pack? can you not pack? can she not pack? can we not pack? can you not pack? can they not pack?
Forma con V-ing
can I not be packing? can you not be packing? can she not be packing? can we not be packing? can you not be packing? can they not be packing?
Perfecto
can I not have packed? can you not have packed? can she not have packed? can we not have packed? can you not have packed? can they not have packed?
Perfecto con V-ing
can I not have been packing? can you not have been packing? can she not have been packing? can we not have been packing? can you not have been packing? can they not have been packing?