| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who have been [verb] to | 223 |
|
| 2 | [pron] have been expose to | 24 |
|
| 3 | who have been expose [prep] | 12 |
|
| 4 | who have be expose to | 11 |
|
| 5 | who have [been] expose to | 11 |
|
| 6 | who [verb] been expose to | 11 |
|
| 7 | who have been expose to | 11 |
|
| 8 | who have [be] expose to | 11 |
|
| 9 | [Wh pn] have been expose to | 11 |
|
