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