I can surge you can surge he can surge we can surge you can surge they can surge
V-ing form
I can be surging you can be surging he can be surging we can be surging you can be surging they can be surging
Perfect
I can have surged you can have surged he can have surged we can have surged you can have surged they can have surged
V-ing perfect
I can have been surging you can have been surging he can have been surging we can have been surging you can have been surging they can have been surging
Negation
Simple form
I cannot surge you cannot surge he cannot surge we cannot surge you cannot surge they cannot surge
V-ing form
I cannot be surging you cannot be surging he cannot be surging we cannot be surging you cannot be surging they cannot be surging
Perfect
I cannot have surged you cannot have surged he cannot have surged we cannot have surged you cannot have surged they cannot have surged
V-ing perfect
I cannot have been surging you cannot have been surging he cannot have been surging we cannot have been surging you cannot have been surging they cannot have been surging
Interrogative form
Simple form
can I surge? can you surge? can he surge? can we surge? can you surge? can they surge?
V-ing form
can I be surging? can you be surging? can he be surging? can we be surging? can you be surging? can they be surging?
Perfect
can I have surged? can you have surged? can he have surged? can we have surged? can you have surged? can they have surged?
V-ing perfect
can I have been surging? can you have been surging? can he have been surging? can we have been surging? can you have been surging? can they have been surging?
Interro-negative form
Simple form
can I not surge? can you not surge? can he not surge? can we not surge? can you not surge? can they not surge?
V-ing form
can I not be surging? can you not be surging? can he not be surging? can we not be surging? can you not be surging? can they not be surging?
Perfect
can I not have surged? can you not have surged? can he not have surged? can we not have surged? can you not have surged? can they not have surged?
V-ing perfect
can I not have been surging? can you not have been surging? can he not have been surging? can we not have been surging? can you not have been surging? can they not have been surging?