I could sway you could sway she could sway we could sway you could sway they could sway
V-ing form
I could be swaying you could be swaying she could be swaying we could be swaying you could be swaying they could be swaying
Perfect
I could have swayed you could have swayed she 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 she could have been swaying we could have been swaying you could have been swaying they could have been swaying
Negation
Simple form
I couldn't sway you couldn't sway she couldn't sway we couldn't sway you couldn't sway they couldn't sway
V-ing form
I couldn't be swaying you couldn't be swaying she couldn't be swaying we couldn't be swaying you couldn't be swaying they couldn't be swaying
Perfect
I couldn't have swayed you couldn't have swayed she couldn't have swayed we couldn't have swayed you couldn't have swayed they couldn't have swayed
V-ing perfect
I couldn't have been swaying you couldn't have been swaying she couldn't have been swaying we couldn't have been swaying you couldn't have been swaying they couldn't have been swaying
Interrogative form
Simple form
could I sway? could you sway? could she sway? could we sway? could you sway? could they sway?
V-ing form
could I be swaying? could you be swaying? could she be swaying? could we be swaying? could you be swaying? could they be swaying?
Perfect
could I have swayed? could you have swayed? could she 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 she have been swaying? could we have been swaying? could you have been swaying? could they have been swaying?
Interro-negative form
Simple form
couldn't I sway? couldn't you sway? couldn't she sway? couldn't we sway? couldn't you sway? couldn't they sway?
V-ing form
couldn't I be swaying? couldn't you be swaying? couldn't she be swaying? couldn't we be swaying? couldn't you be swaying? couldn't they be swaying?
Perfect
couldn't I have swayed? couldn't you have swayed? couldn't she have swayed? couldn't we have swayed? couldn't you have swayed? couldn't they have swayed?
V-ing perfect
couldn't I have been swaying? couldn't you have been swaying? couldn't she have been swaying? couldn't we have been swaying? couldn't you have been swaying? couldn't they have been swaying?