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