| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [Wh det] [pron] have be working | 9 |
|
| 2 | [prep] [Wh det] [pron] have [been] working | 9 |
|
| 3 | [prep] [Wh det] [pers pn] have [be] working | 9 |
|
| 4 | [prep] [Wh det] [pron] have been working | 9 |
|
| 5 | [prep] which [pron] have [be] working | 7 |
|
| 6 | [prep] [Wh det] [pron] had [be] working | 6 |
|
