| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [adv] that the | 483 |
|
| 2 | [vb pp] to ensure that the | 192 |
|
| 3 | [adv] to ensure that the | 59 |
|
| 4 | [vb pp] [adv] to ensure that | 17 |
|
| 5 | [vb pp] [adv] to ensure the | 5 |
|
