| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] had been [v-ing] [prep] | 1015 |
|
| 2 | [noun] [pron] had been [v-ing] | 709 |
|
| 3 | [noun] had been [v-ing] [prep] | 702 |
|
| 4 | [noun] [pron] had been [prep] | 363 |
|
