I could blind you could blind she could blind we could blind you could blind they could blind
V-ing form
I could be blinding you could be blinding she could be blinding we could be blinding you could be blinding they could be blinding
Perfect
I could have blinded you could have blinded she could have blinded we could have blinded you could have blinded they could have blinded
V-ing perfect
I could have been blinding you could have been blinding she could have been blinding we could have been blinding you could have been blinding they could have been blinding
Negation
Simple form
I couldn't blind you couldn't blind she couldn't blind we couldn't blind you couldn't blind they couldn't blind
V-ing form
I couldn't be blinding you couldn't be blinding she couldn't be blinding we couldn't be blinding you couldn't be blinding they couldn't be blinding
Perfect
I couldn't have blinded you couldn't have blinded she couldn't have blinded we couldn't have blinded you couldn't have blinded they couldn't have blinded
V-ing perfect
I couldn't have been blinding you couldn't have been blinding she couldn't have been blinding we couldn't have been blinding you couldn't have been blinding they couldn't have been blinding
Interrogative form
Simple form
could I blind? could you blind? could she blind? could we blind? could you blind? could they blind?
V-ing form
could I be blinding? could you be blinding? could she be blinding? could we be blinding? could you be blinding? could they be blinding?
Perfect
could I have blinded? could you have blinded? could she have blinded? could we have blinded? could you have blinded? could they have blinded?
V-ing perfect
could I have been blinding? could you have been blinding? could she have been blinding? could we have been blinding? could you have been blinding? could they have been blinding?
Interro-negative form
Simple form
couldn't I blind? couldn't you blind? couldn't she blind? couldn't we blind? couldn't you blind? couldn't they blind?
V-ing form
couldn't I be blinding? couldn't you be blinding? couldn't she be blinding? couldn't we be blinding? couldn't you be blinding? couldn't they be blinding?
Perfect
couldn't I have blinded? couldn't you have blinded? couldn't she have blinded? couldn't we have blinded? couldn't you have blinded? couldn't they have blinded?
V-ing perfect
couldn't I have been blinding? couldn't you have been blinding? couldn't she have been blinding? couldn't we have been blinding? couldn't you have been blinding? couldn't they have been blinding?