| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] had [been] | 25566 |
|
| 2 | had [been] [v-ing] | 5819 |
|
| 3 | [pron] [been] [v-ing] | 567 |
|
| 4 | [pron] had [v-ing] | 37 |
|
