| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [was/were] [v-ing] for a [noun sg] | 10 |
|
| 2 | who [was/were] [v-ing] for a [noun] | 10 |
|
| 3 | who was [v-ing] for a [noun] | 6 |
|
