| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [that] [pron] [vb base] a | 520 |
|
| 2 | ensure [that] [pron] [vb base] [art] | 100 |
|
| 3 | ensure [that] [pron] [verb] a | 56 |
|
| 4 | ensure [conj] [pron] [vb base] a | 35 |
|
