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