| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [verb] been [v-ing] | 1024 |
|
| 2 | [verb] been [v-ing] on | 530 |
|
| 3 | who [verb] been on | 107 |
|
| 4 | who [verb] [v-ing] on | 16 |
|
