| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] as ensure that | 26 |
|
| 2 | [adv] as ensure that | 26 |
|
| 3 | [adv] as to ensure that | 23 |
|
| 4 | so as ensure that | 21 |
|
| 5 | so as ensure that | 21 |
|
| 6 | well as ensure that | 5 |
|
| 7 | well as ensure that | 5 |
|
