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