| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [subord] [conj] [adj] | 90 |
|
| 2 | [adv] to ensure [conj] [adj] | 38 |
|
| 3 | [adv] [subord] to ensure [conj] | 24 |
|
| 4 | [subord] to ensure [conj] [adj] | 8 |
|
