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