| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] ensure that [pers pn] is | 12 |
|
| 2 | [adv] ensure [that] it is | 11 |
|
| 3 | [adv] ensure [that] [pers pn] is | 9 |
|
| 4 | [adv] to ensure [that] [pers pn] is | 6 |
|
