| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] as [adj] | 7560 |
|
| 2 | [adv] [adj] to ensure | 120 |
|
| 3 | [adv] as to ensure | 41 |
|
| 4 | as [adj] to ensure | 11 |
|
