| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [been] [v-ing] | 5819 |
|
| 2 | he had [been] | 5151 |
|
| 3 | he [been] [v-ing] | 59 |
|
| 4 | he had [v-ing] | 7 |
|
