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