| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who was [v-ing] at the [noun sg] | 17 |
|
| 2 | who were [v-ing] at the [noun sg] | 12 |
|
| 3 | who be sitting at the [noun sg] | 6 |
|
| 4 | who be [v-ing] at the back | 6 |
|
| 5 | who be working at the [noun sg] | 5 |
|
