I could redeem you could redeem he could redeem we could redeem you could redeem they could redeem
V-ing form
I could be redeeming you could be redeeming he could be redeeming we could be redeeming you could be redeeming they could be redeeming
Perfect
I could have redeemed you could have redeemed he could have redeemed we could have redeemed you could have redeemed they could have redeemed
V-ing perfect
I could have been redeeming you could have been redeeming he could have been redeeming we could have been redeeming you could have been redeeming they could have been redeeming
Negation
Simple form
I couldn't redeem you couldn't redeem he couldn't redeem we couldn't redeem you couldn't redeem they couldn't redeem
V-ing form
I couldn't be redeeming you couldn't be redeeming he couldn't be redeeming we couldn't be redeeming you couldn't be redeeming they couldn't be redeeming
Perfect
I couldn't have redeemed you couldn't have redeemed he couldn't have redeemed we couldn't have redeemed you couldn't have redeemed they couldn't have redeemed
V-ing perfect
I couldn't have been redeeming you couldn't have been redeeming he couldn't have been redeeming we couldn't have been redeeming you couldn't have been redeeming they couldn't have been redeeming
Interrogative form
Simple form
could I redeem? could you redeem? could he redeem? could we redeem? could you redeem? could they redeem?
V-ing form
could I be redeeming? could you be redeeming? could he be redeeming? could we be redeeming? could you be redeeming? could they be redeeming?
Perfect
could I have redeemed? could you have redeemed? could he have redeemed? could we have redeemed? could you have redeemed? could they have redeemed?
V-ing perfect
could I have been redeeming? could you have been redeeming? could he have been redeeming? could we have been redeeming? could you have been redeeming? could they have been redeeming?
Interro-negative form
Simple form
couldn't I redeem? couldn't you redeem? couldn't he redeem? couldn't we redeem? couldn't you redeem? couldn't they redeem?
V-ing form
couldn't I be redeeming? couldn't you be redeeming? couldn't he be redeeming? couldn't we be redeeming? couldn't you be redeeming? couldn't they be redeeming?
Perfect
couldn't I have redeemed? couldn't you have redeemed? couldn't he have redeemed? couldn't we have redeemed? couldn't you have redeemed? couldn't they have redeemed?
V-ing perfect
couldn't I have been redeeming? couldn't you have been redeeming? couldn't he have been redeeming? couldn't we have been redeeming? couldn't you have been redeeming? couldn't they have been redeeming?