| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [adv] [verb] [art] | 12297 |
|
| 2 | [adv] [adv] [to-vb] [art] | 1548 |
|
| 3 | [adv] [adv] ensure [art] | 18 |
|
| 4 | [adv] [adv] to ensure [art] | 8 |
|
| 5 | [adv] [adv] to ensure [art] | 8 |
|
