| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who have [been] on a | 12 |
|
| 2 | who have be on a | 12 |
|
| 3 | who have been on a | 12 |
|
| 4 | who have [be] on a | 10 |
|
| 5 | who had [be] on a | 5 |
|
