| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [vb base] [noun pl] [prep] | 362 |
|
| 2 | staff who [vb base] [prep] | 35 |
|
| 3 | staff [vb base] [noun pl] [prep] | 12 |
|
| 4 | staff who [vb base] [noun pl] | 9 |
|
