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