| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb past] establish [art] | 11 |
|
| 2 | it [vb past] establish a | 9 |
|
| 3 | it [vb past] establish a | 7 |
|
| 4 | it [vb past] established [art] | 5 |
|
| 5 | it had establish [art] | 5 |
|
