| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who has been [verb] on | 13 |
|
| 2 | who has [been] [verb] on | 13 |
|
| 3 | who has [be] [verb] on | 13 |
|
| 4 | who has be [verb] on | 13 |
|
| 5 | who has [be] [v-ing] on | 9 |
|
