| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [was/were] [adv] at the time | 9 |
|
| 2 | who [was/were] [adv] at the time | 9 |
|
| 3 | who [was/were] [adv] at the time | 6 |
|
| 4 | who was [adv] at the time | 6 |
|
