| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who had [be] [prep] | 319 |
|
| 2 | had [be] work [prep] | 163 |
|
| 3 | who [be] work [prep] | 145 |
|
| 4 | who had work [prep] | 112 |
|
| 5 | who had [be] work | 16 |
|
