I can surcharge you can surcharge she can surcharge we can surcharge you can surcharge they can surcharge
V-ing form
I can be surcharging you can be surcharging she can be surcharging we can be surcharging you can be surcharging they can be surcharging
Perfect
I can have surcharged you can have surcharged she can have surcharged we can have surcharged you can have surcharged they can have surcharged
V-ing perfect
I can have been surcharging you can have been surcharging she can have been surcharging we can have been surcharging you can have been surcharging they can have been surcharging
Negation
Simple form
I cannot surcharge you cannot surcharge she cannot surcharge we cannot surcharge you cannot surcharge they cannot surcharge
V-ing form
I cannot be surcharging you cannot be surcharging she cannot be surcharging we cannot be surcharging you cannot be surcharging they cannot be surcharging
Perfect
I cannot have surcharged you cannot have surcharged she cannot have surcharged we cannot have surcharged you cannot have surcharged they cannot have surcharged
V-ing perfect
I cannot have been surcharging you cannot have been surcharging she cannot have been surcharging we cannot have been surcharging you cannot have been surcharging they cannot have been surcharging
Interrogative form
Simple form
can I surcharge? can you surcharge? can she surcharge? can we surcharge? can you surcharge? can they surcharge?
V-ing form
can I be surcharging? can you be surcharging? can she be surcharging? can we be surcharging? can you be surcharging? can they be surcharging?
Perfect
can I have surcharged? can you have surcharged? can she have surcharged? can we have surcharged? can you have surcharged? can they have surcharged?
V-ing perfect
can I have been surcharging? can you have been surcharging? can she have been surcharging? can we have been surcharging? can you have been surcharging? can they have been surcharging?
Interro-negative form
Simple form
can I not surcharge? can you not surcharge? can she not surcharge? can we not surcharge? can you not surcharge? can they not surcharge?
V-ing form
can I not be surcharging? can you not be surcharging? can she not be surcharging? can we not be surcharging? can you not be surcharging? can they not be surcharging?
Perfect
can I not have surcharged? can you not have surcharged? can she not have surcharged? can we not have surcharged? can you not have surcharged? can they not have surcharged?
V-ing perfect
can I not have been surcharging? can you not have been surcharging? can she not have been surcharging? can we not have been surcharging? can you not have been surcharging? can they not have been surcharging?