I could sway you could sway he could sway we could sway you could sway they could sway
V-ing form
I could be swaying you could be swaying he could be swaying we could be swaying you could be swaying they could be swaying
Perfect
I could have swayed you could have swayed he could have swayed we could have swayed you could have swayed they could have swayed
V-ing perfect
I could have been swaying you could have been swaying he could have been swaying we could have been swaying you could have been swaying they could have been swaying
Negation
Simple form
I could not sway you could not sway he could not sway we could not sway you could not sway they could not sway
V-ing form
I could not be swaying you could not be swaying he could not be swaying we could not be swaying you could not be swaying they could not be swaying
Perfect
I could not have swayed you could not have swayed he could not have swayed we could not have swayed you could not have swayed they could not have swayed
V-ing perfect
I could not have been swaying you could not have been swaying he could not have been swaying we could not have been swaying you could not have been swaying they could not have been swaying
Interrogative form
Simple form
could I sway? could you sway? could he sway? could we sway? could you sway? could they sway?
V-ing form
could I be swaying? could you be swaying? could he be swaying? could we be swaying? could you be swaying? could they be swaying?
Perfect
could I have swayed? could you have swayed? could he have swayed? could we have swayed? could you have swayed? could they have swayed?
V-ing perfect
could I have been swaying? could you have been swaying? could he have been swaying? could we have been swaying? could you have been swaying? could they have been swaying?
Interro-negative form
Simple form
could I not sway? could you not sway? could he not sway? could we not sway? could you not sway? could they not sway?
V-ing form
could I not be swaying? could you not be swaying? could he not be swaying? could we not be swaying? could you not be swaying? could they not be swaying?
Perfect
could I not have swayed? could you not have swayed? could he not have swayed? could we not have swayed? could you not have swayed? could they not have swayed?
V-ing perfect
could I not have been swaying? could you not have been swaying? could he not have been swaying? could we not have been swaying? could you not have been swaying? could they not have been swaying?