| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] had been [verb] to | 303 |
|
| 2 | [noun] had been expose to | 15 |
|
| 3 | [noun pl] have been expose to | 14 |
|
| 4 | [noun pl] [verb] been expose to | 14 |
|
| 5 | [noun pl] had [be] expose to | 10 |
|
| 6 | [noun pl] had been expose [prep] | 10 |
|
| 7 | [noun pl] had be expose to | 10 |
|
| 8 | [noun pl] had been expose [prep] | 10 |
|
| 9 | [noun pl] had [been] expose to | 10 |
|
| 10 | [noun pl] [vb past] been expose to | 10 |
|
| 11 | [noun pl] had been expose to | 10 |
|
