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