| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] had been [v-ing] [prep] | 1015 |
|
| 2 | [pron] had been [v-ing] [adv] | 301 |
|
| 3 | had been [v-ing] [adv] [prep] | 199 |
|
| 4 | [pron] had been [adv] [prep] | 167 |
|
