| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] important ensure that | 28 |
|
| 2 | [pron] [be] important to ensure that | 28 |
|
| 3 | it [be] important ensure that | 28 |
|
| 4 | [pron] be important ensure that | 28 |
|
| 5 | [pers pn] [be] important ensure that | 28 |
|
| 6 | [pron] is important ensure that | 27 |
|
| 7 | [pron] [is] important ensure that | 27 |
|
