| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] on a | 344 |
|
| 2 | who have been [verb] a | 97 |
|
| 3 | who have been [verb] on | 86 |
|
| 4 | who have [verb] on a | 22 |
|
| 5 | who have been on a | 12 |
|
