| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | ensure that they [vb base] the | 27 |
|
| 2 | ensure that they [vb base] the | 27 |
|
| 3 | ensure that they [vb base] the | 27 |
|
| 4 | to ensure that they [vb base] the | 12 |
|
| 5 | ensure that they [vb base] the | 6 |
|
| 6 | ensure that they [vb base] the | 5 |
|
