| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | staff who [vb base] [verb] [prep] [art] | 7 |
|
| 2 | staff who [vb base] work [prep] [art] | 6 |
|
| 3 | staff who [vb base] [prep] [art] [noun] | 9 |
|
| 4 | staff who [vb base] [prep] [art] [noun sg] | 6 |
|
