| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] important to ensure that | 13 |
|
| 2 | [pers pn] is [adv] important to ensure that | 13 |
|
| 3 | it is [adv] important to ensure that | 13 |
|
| 4 | [pron] is [adv] important to ensure that | 13 |
|
