| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | established itself [prep] [art] | 36 |
|
| 2 | established itself as [art] | 27 |
|
| 3 | established itself [prep] the | 19 |
|
| 4 | established itself [prep] the | 19 |
|
| 5 | established itself [prep] a | 17 |
|
| 6 | established itself [prep] a | 16 |
|
