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