| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] established that [art] | 13 |
|
| 2 | is [adv] establish that [art] | 13 |
|
| 3 | is well establish that [art] | 9 |
|
| 4 | is [adv] establish that the | 8 |
|
| 5 | is [adv] establish that a | 5 |
|
