I could scheme you could scheme he could scheme we could scheme you could scheme they could scheme
Forma con V-ing
I could be scheming you could be scheming he could be scheming we could be scheming you could be scheming they could be scheming
Perfecto
I could have schemed you could have schemed he 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 he 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 he 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 he 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 he 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 he 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 he scheme? could we scheme? could you scheme? could they scheme?
Forma con V-ing
could I be scheming? could you be scheming? could he be scheming? could we be scheming? could you be scheming? could they be scheming?
Perfecto
could I have schemed? could you have schemed? could he 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 he 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 he 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 he 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 he 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 he have been scheming? couldn't we have been scheming? couldn't you have been scheming? couldn't they have been scheming?