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