I could tare you could tare he could tare we could tare you could tare they could tare
V-ing form
I could be taring you could be taring he could be taring we could be taring you could be taring they could be taring
Perfect
I could have tared you could have tared he could have tared we could have tared you could have tared they could have tared
V-ing perfect
I could have been taring you could have been taring he could have been taring we could have been taring you could have been taring they could have been taring
Negation
Simple form
I could not tare you could not tare he could not tare we could not tare you could not tare they could not tare
V-ing form
I could not be taring you could not be taring he could not be taring we could not be taring you could not be taring they could not be taring
Perfect
I could not have tared you could not have tared he could not have tared we could not have tared you could not have tared they could not have tared
V-ing perfect
I could not have been taring you could not have been taring he could not have been taring we could not have been taring you could not have been taring they could not have been taring
Interrogative form
Simple form
could I tare? could you tare? could he tare? could we tare? could you tare? could they tare?
V-ing form
could I be taring? could you be taring? could he be taring? could we be taring? could you be taring? could they be taring?
Perfect
could I have tared? could you have tared? could he have tared? could we have tared? could you have tared? could they have tared?
V-ing perfect
could I have been taring? could you have been taring? could he have been taring? could we have been taring? could you have been taring? could they have been taring?
Interro-negative form
Simple form
could I not tare? could you not tare? could he not tare? could we not tare? could you not tare? could they not tare?
V-ing form
could I not be taring? could you not be taring? could he not be taring? could we not be taring? could you not be taring? could they not be taring?
Perfect
could I not have tared? could you not have tared? could he not have tared? could we not have tared? could you not have tared? could they not have tared?
V-ing perfect
could I not have been taring? could you not have been taring? could he not have been taring? could we not have been taring? could you not have been taring? could they not have been taring?