| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] [pron] had been [v-ing] | 196 |
|
| 2 | [prep] [noun pl] [pron] had been | 172 |
|
| 3 | [prep] [pron] had been [v-ing] | 46 |
|
| 4 | [prep] [noun pl] had been [v-ing] | 13 |
|
