| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] he had been [v-ing] | 279 |
|
| 2 | he had been [v-ing] at | 26 |
|
| 3 | [conj] he had been at | 20 |
|
| 4 | [conj] had been [v-ing] at | 5 |
|
