| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] [adj] to ensure [that] [adj] | 8 |
|
| 2 | is [adv] [adj] to ensure [conj] [adj] | 8 |
|
| 3 | is [adv] [adj] to ensure that [adj] | 8 |
|
| 4 | is [adv] [adj] to ensure that [adj] | 8 |
|
