| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and ensure that [pron] [vb base] [prep] | 6 |
|
| 2 | [coord] ensure that [pers pn] [vb base] [prep] | 6 |
|
| 3 | [coord] ensure that [pron] [vb base] [prep] | 6 |
|
