I could remedy you could remedy she could remedy we could remedy you could remedy they could remedy
V-ing form
I could be remedying you could be remedying she could be remedying we could be remedying you could be remedying they could be remedying
Perfect
I could have remedied you could have remedied she 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 she 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 she 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 she 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 she 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 she 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 she remedy? could we remedy? could you remedy? could they remedy?
V-ing form
could I be remedying? could you be remedying? could she be remedying? could we be remedying? could you be remedying? could they be remedying?
Perfect
could I have remedied? could you have remedied? could she 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 she 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 she 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 she 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 she 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 she have been remedying? couldn't we have been remedying? couldn't you have been remedying? couldn't they have been remedying?