| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | staff who [vb base] [prep] [pron] | 9 |
|
| 2 | staff who [vb base] [prep] [pron] | 9 |
|
| 3 | staff who [vb base] [prep] [pers pn] | 5 |
|
| 4 | staff who work [prep] [pron] | 5 |
|
