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 couldn't tare you couldn't tare he couldn't tare we couldn't tare you couldn't tare they couldn't tare
V-ing form
I couldn't be taring you couldn't be taring he couldn't be taring we couldn't be taring you couldn't be taring they couldn't be taring
Perfect
I couldn't have tared you couldn't have tared he couldn't have tared we couldn't have tared you couldn't have tared they couldn't have tared
V-ing perfect
I couldn't have been taring you couldn't have been taring he couldn't have been taring we couldn't have been taring you couldn't have been taring they couldn't 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
couldn't I tare? couldn't you tare? couldn't he tare? couldn't we tare? couldn't you tare? couldn't they tare?
V-ing form
couldn't I be taring? couldn't you be taring? couldn't he be taring? couldn't we be taring? couldn't you be taring? couldn't they be taring?
Perfect
couldn't I have tared? couldn't you have tared? couldn't he have tared? couldn't we have tared? couldn't you have tared? couldn't they have tared?
V-ing perfect
couldn't I have been taring? couldn't you have been taring? couldn't he have been taring? couldn't we have been taring? couldn't you have been taring? couldn't they have been taring?