| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb pp] that [adj] | 444 |
|
| 2 | [adv] [vb pp] to ensure that | 44 |
|
| 3 | [vb pp] to ensure that [adj] | 37 |
|
| 4 | [adv] to ensure that [adj] | 12 |
|
| 5 | [adv] [vb pp] to ensure [adj] | 5 |
|
