| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [vb past] [verb] [v-ing] [pron] | 9 |
|
| 2 | who [vb past] [vb pp] [v-ing] [pron] | 8 |
|
| 3 | who had [verb] [v-ing] [pron] | 7 |
|
| 4 | who [vb past] [verb] [v-ing] [pos pn] | 6 |
|
