I could assume you could assume he could assume we could assume you could assume they could assume
Forma con V-ing
I could be assuming you could be assuming he could be assuming we could be assuming you could be assuming they could be assuming
Perfecto
I could have assumed you could have assumed he could have assumed we could have assumed you could have assumed they could have assumed
Perfecto con V-ing
I could have been assuming you could have been assuming he could have been assuming we could have been assuming you could have been assuming they could have been assuming
Negación
Forma simple
I couldn't assume you couldn't assume he couldn't assume we couldn't assume you couldn't assume they couldn't assume
Forma con V-ing
I couldn't be assuming you couldn't be assuming he couldn't be assuming we couldn't be assuming you couldn't be assuming they couldn't be assuming
Perfecto
I couldn't have assumed you couldn't have assumed he couldn't have assumed we couldn't have assumed you couldn't have assumed they couldn't have assumed
Perfecto con V-ing
I couldn't have been assuming you couldn't have been assuming he couldn't have been assuming we couldn't have been assuming you couldn't have been assuming they couldn't have been assuming
Forma interrogativa
Forma simple
could I assume? could you assume? could he assume? could we assume? could you assume? could they assume?
Forma con V-ing
could I be assuming? could you be assuming? could he be assuming? could we be assuming? could you be assuming? could they be assuming?
Perfecto
could I have assumed? could you have assumed? could he have assumed? could we have assumed? could you have assumed? could they have assumed?
Perfecto con V-ing
could I have been assuming? could you have been assuming? could he have been assuming? could we have been assuming? could you have been assuming? could they have been assuming?
Forma interro-negativa
Forma simple
couldn't I assume? couldn't you assume? couldn't he assume? couldn't we assume? couldn't you assume? couldn't they assume?
Forma con V-ing
couldn't I be assuming? couldn't you be assuming? couldn't he be assuming? couldn't we be assuming? couldn't you be assuming? couldn't they be assuming?
Perfecto
couldn't I have assumed? couldn't you have assumed? couldn't he have assumed? couldn't we have assumed? couldn't you have assumed? couldn't they have assumed?
Perfecto con V-ing
couldn't I have been assuming? couldn't you have been assuming? couldn't he have been assuming? couldn't we have been assuming? couldn't you have been assuming? couldn't they have been assuming?