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