| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [been] [v-ing] | 5819 |
|
| 2 | i had [been] | 1101 |
|
| 3 | i [been] [v-ing] | 33 |
|
| 4 | i had [v-ing] | 14 |
|
