| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that [pers pn] [vb base] [pron] | 2303 |
|
| 2 | ensure that [pers pn] [vb base] | 394 |
|
| 3 | ensure [pers pn] [vb base] [pron] | 14 |
|
