I could pack you could pack she could pack we could pack you could pack they could pack
Forma con V-ing
I could be packing you could be packing she could be packing we could be packing you could be packing they could be packing
Perfecto
I could have packed you could have packed she could have packed we could have packed you could have packed they could have packed
Perfecto con V-ing
I could have been packing you could have been packing she could have been packing we could have been packing you could have been packing they could have been packing
Negación
Forma simple
I couldn't pack you couldn't pack she couldn't pack we couldn't pack you couldn't pack they couldn't pack
Forma con V-ing
I couldn't be packing you couldn't be packing she couldn't be packing we couldn't be packing you couldn't be packing they couldn't be packing
Perfecto
I couldn't have packed you couldn't have packed she couldn't have packed we couldn't have packed you couldn't have packed they couldn't have packed
Perfecto con V-ing
I couldn't have been packing you couldn't have been packing she couldn't have been packing we couldn't have been packing you couldn't have been packing they couldn't have been packing
Forma interrogativa
Forma simple
could I pack? could you pack? could she pack? could we pack? could you pack? could they pack?
Forma con V-ing
could I be packing? could you be packing? could she be packing? could we be packing? could you be packing? could they be packing?
Perfecto
could I have packed? could you have packed? could she have packed? could we have packed? could you have packed? could they have packed?
Perfecto con V-ing
could I have been packing? could you have been packing? could she have been packing? could we have been packing? could you have been packing? could they have been packing?
Forma interro-negativa
Forma simple
couldn't I pack? couldn't you pack? couldn't she pack? couldn't we pack? couldn't you pack? couldn't they pack?
Forma con V-ing
couldn't I be packing? couldn't you be packing? couldn't she be packing? couldn't we be packing? couldn't you be packing? couldn't they be packing?
Perfecto
couldn't I have packed? couldn't you have packed? couldn't she have packed? couldn't we have packed? couldn't you have packed? couldn't they have packed?
Perfecto con V-ing
couldn't I have been packing? couldn't you have been packing? couldn't she have been packing? couldn't we have been packing? couldn't you have been packing? couldn't they have been packing?