| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [verb] been [v-ing] | 1024 |
|
| 2 | [verb] been [v-ing] in | 815 |
|
| 3 | who [verb] been in | 265 |
|
| 4 | who [verb] [v-ing] in | 24 |
|
