| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] a [adj] | 30788 |
|
| 2 | to ensure a [adj] | 214 |
|
| 3 | [adv] to ensure [adj] | 22 |
|
| 4 | [adv] to ensure a | 15 |
|
