| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] is to ensure that [adj] [noun pl] | 10 |
|
| 2 | [noun sg] is to ensure that [adj] [noun pl] | 8 |
|
| 3 | is [adj] to ensure that [adj] [noun pl] | 5 |
|
| 4 | is [adj] to ensure that [adj] [noun pl] | 5 |
|
