I could steam you could steam he could steam we could steam you could steam they could steam
Forma com V-ing
I could be steaming you could be steaming he could be steaming we could be steaming you could be steaming they could be steaming
Perfeito
I could have steamed you could have steamed he could have steamed we could have steamed you could have steamed they could have steamed
Perfeito com V-ing
I could have been steaming you could have been steaming he could have been steaming we could have been steaming you could have been steaming they could have been steaming
Negação
Forma simple
I could not steam you could not steam he could not steam we could not steam you could not steam they could not steam
Forma com V-ing
I could not be steaming you could not be steaming he could not be steaming we could not be steaming you could not be steaming they could not be steaming
Perfeito
I could not have steamed you could not have steamed he could not have steamed we could not have steamed you could not have steamed they could not have steamed
Perfeito com V-ing
I could not have been steaming you could not have been steaming he could not have been steaming we could not have been steaming you could not have been steaming they could not have been steaming
Forma interrogativa
Forma simple
could I steam? could you steam? could he steam? could we steam? could you steam? could they steam?
Forma com V-ing
could I be steaming? could you be steaming? could he be steaming? could we be steaming? could you be steaming? could they be steaming?
Perfeito
could I have steamed? could you have steamed? could he have steamed? could we have steamed? could you have steamed? could they have steamed?
Perfeito com V-ing
could I have been steaming? could you have been steaming? could he have been steaming? could we have been steaming? could you have been steaming? could they have been steaming?
Forma interro-Negação
Forma simple
could I not steam? could you not steam? could he not steam? could we not steam? could you not steam? could they not steam?
Forma com V-ing
could I not be steaming? could you not be steaming? could he not be steaming? could we not be steaming? could you not be steaming? could they not be steaming?
Perfeito
could I not have steamed? could you not have steamed? could he not have steamed? could we not have steamed? could you not have steamed? could they not have steamed?
Perfeito com V-ing
could I not have been steaming? could you not have been steaming? could he not have been steaming? could we not have been steaming? could you not have been steaming? could they not have been steaming?