I could windmill you could windmill he could windmill we could windmill you could windmill they could windmill
Forma con V-ing
I could be windmilling you could be windmilling he could be windmilling we could be windmilling you could be windmilling they could be windmilling
Perfecto
I could have windmilled you could have windmilled he could have windmilled we could have windmilled you could have windmilled they could have windmilled
Perfecto con V-ing
I could have been windmilling you could have been windmilling he could have been windmilling we could have been windmilling you could have been windmilling they could have been windmilling
Negación
Forma simple
I could not windmill you could not windmill he could not windmill we could not windmill you could not windmill they could not windmill
Forma con V-ing
I could not be windmilling you could not be windmilling he could not be windmilling we could not be windmilling you could not be windmilling they could not be windmilling
Perfecto
I could not have windmilled you could not have windmilled he could not have windmilled we could not have windmilled you could not have windmilled they could not have windmilled
Perfecto con V-ing
I could not have been windmilling you could not have been windmilling he could not have been windmilling we could not have been windmilling you could not have been windmilling they could not have been windmilling
Forma interrogativa
Forma simple
could I windmill? could you windmill? could he windmill? could we windmill? could you windmill? could they windmill?
Forma con V-ing
could I be windmilling? could you be windmilling? could he be windmilling? could we be windmilling? could you be windmilling? could they be windmilling?
Perfecto
could I have windmilled? could you have windmilled? could he have windmilled? could we have windmilled? could you have windmilled? could they have windmilled?
Perfecto con V-ing
could I have been windmilling? could you have been windmilling? could he have been windmilling? could we have been windmilling? could you have been windmilling? could they have been windmilling?
Forma interro-negativa
Forma simple
could I not windmill? could you not windmill? could he not windmill? could we not windmill? could you not windmill? could they not windmill?
Forma con V-ing
could I not be windmilling? could you not be windmilling? could he not be windmilling? could we not be windmilling? could you not be windmilling? could they not be windmilling?
Perfecto
could I not have windmilled? could you not have windmilled? could he not have windmilled? could we not have windmilled? could you not have windmilled? could they not have windmilled?
Perfecto con V-ing
could I not have been windmilling? could you not have been windmilling? could he not have been windmilling? could we not have been windmilling? could you not have been windmilling? could they not have been windmilling?