| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] had [been] [prep] | 1920 |
|
| 2 | [Wh pn] have [been] [prep] | 666 |
|
| 3 | [Wh pn] [verb] [been] [prep] | 666 |
|
| 4 | [Wh pn] [vb past] [been] [prep] | 363 |
|
| 5 | [Wh pn] had [been] [prep] | 330 |
|
| 6 | [Wh pn] had [be] [prep] | 330 |
|
