| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who was [adv] [verb] at the | 12 |
|
| 2 | who [was/were] [adv] [verb] at the | 12 |
|
| 3 | who [was/were] [adv] [vb pp] at the | 9 |
|
| 4 | who [was/were] [adv] [v-ing] at the | 6 |
|
