| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] so as ensure [conj] | 5 |
|
| 2 | [vb pp] [adv] as ensure [that] | 5 |
|
| 3 | [vb pp] [adv] as ensure that | 5 |
|
| 4 | [vb pp] [adv] as to ensure [conj] | 5 |
|
| 5 | [vb pp] [adv] as ensure that | 5 |
|
