| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] had been [v-ing] | 3168 |
|
| 2 | what had been [verb] | 208 |
|
| 3 | what [verb] been [v-ing] | 191 |
|
| 4 | what have been [v-ing] | 191 |
|
| 5 | what had [be] [v-ing] | 34 |
|
| 6 | what [vb past] been [v-ing] | 34 |
|
| 7 | what had [been] [v-ing] | 34 |
|
| 8 | what had be [v-ing] | 34 |
|
