| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] as [conj] [pron] | 391 |
|
| 2 | [adv] to ensure [conj] [pron] | 51 |
|
| 3 | [adv] as to ensure [conj] | 23 |
|
| 4 | as to ensure [conj] [pron] | 8 |
|
