| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been establish [prep] [noun] | 116 |
|
| 2 | been [prep] many [noun] | 39 |
|
| 3 | establish [prep] many [noun] | 18 |
|
| 4 | been establish [prep] many | 5 |
|
