| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who had been [verb] [prep] [art] | 357 |
|
| 2 | who had been [v-ing] [prep] [art] | 75 |
|
| 3 | [pron] had been working [prep] [art] | 37 |
|
| 4 | who have been working [prep] [art] | 17 |
|
| 5 | who [verb] been working [prep] [art] | 17 |
|
| 6 | who [vb past] been working [prep] [art] | 10 |
|
| 7 | who had be working [prep] [art] | 9 |
|
| 8 | who had been work [prep] [art] | 9 |
|
| 9 | who had [been] working [prep] [art] | 9 |
|
| 10 | who had [be] working [prep] [art] | 9 |
|
