| (13) | a. | The singing of the aria was slow. | nominal gerund |
| b. | Singing the aria was difficult. | verbal gerund | |
| c. | Maria’s singing of the aria was slow. | nominal gerund | |
| d. | Maria’s singing the aria was difficult. | verbal gerund |
| (13) | a. | The singing of the aria was slow. | nominal gerund |
| b. | Singing the aria was difficult. | verbal gerund | |
| c. | Maria’s singing of the aria was slow. | nominal gerund | |
| d. | Maria’s singing the aria was difficult. | verbal gerund |