| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] had been [verb] [prep] [art] | 365 |
|
| 2 | [Wh pn] had been [v-ing] [prep] [art] | 75 |
|
| 3 | [pron] had been working [prep] [art] | 37 |
|
| 4 | [Wh pn] have been working [prep] [art] | 17 |
|
| 5 | [Wh pn] [verb] been working [prep] [art] | 17 |
|
| 6 | [Wh pn] [vb past] been working [prep] [art] | 10 |
|
| 7 | [Wh pn] had [been] working [prep] [art] | 9 |
|
| 8 | [Wh pn] had be working [prep] [art] | 9 |
|
| 9 | [Wh pn] had been work [prep] [art] | 9 |
|
| 10 | [Wh pn] had [be] working [prep] [art] | 9 |
|
