I could pair you could pair he could pair we could pair you could pair they could pair
Forma con V-ing
I could be pairing you could be pairing he could be pairing we could be pairing you could be pairing they could be pairing
Perfecto
I could have paired you could have paired he could have paired we could have paired you could have paired they could have paired
Perfecto con V-ing
I could have been pairing you could have been pairing he could have been pairing we could have been pairing you could have been pairing they could have been pairing
Negación
Forma simple
I couldn't pair you couldn't pair he couldn't pair we couldn't pair you couldn't pair they couldn't pair
Forma con V-ing
I couldn't be pairing you couldn't be pairing he couldn't be pairing we couldn't be pairing you couldn't be pairing they couldn't be pairing
Perfecto
I couldn't have paired you couldn't have paired he couldn't have paired we couldn't have paired you couldn't have paired they couldn't have paired
Perfecto con V-ing
I couldn't have been pairing you couldn't have been pairing he couldn't have been pairing we couldn't have been pairing you couldn't have been pairing they couldn't have been pairing
Forma interrogativa
Forma simple
could I pair? could you pair? could he pair? could we pair? could you pair? could they pair?
Forma con V-ing
could I be pairing? could you be pairing? could he be pairing? could we be pairing? could you be pairing? could they be pairing?
Perfecto
could I have paired? could you have paired? could he have paired? could we have paired? could you have paired? could they have paired?
Perfecto con V-ing
could I have been pairing? could you have been pairing? could he have been pairing? could we have been pairing? could you have been pairing? could they have been pairing?
Forma interro-negativa
Forma simple
couldn't I pair? couldn't you pair? couldn't he pair? couldn't we pair? couldn't you pair? couldn't they pair?
Forma con V-ing
couldn't I be pairing? couldn't you be pairing? couldn't he be pairing? couldn't we be pairing? couldn't you be pairing? couldn't they be pairing?
Perfecto
couldn't I have paired? couldn't you have paired? couldn't he have paired? couldn't we have paired? couldn't you have paired? couldn't they have paired?
Perfecto con V-ing
couldn't I have been pairing? couldn't you have been pairing? couldn't he have been pairing? couldn't we have been pairing? couldn't you have been pairing? couldn't they have been pairing?