| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to ensure [adv] [adv] [conj] [adj] | 9 |
|
| 2 | to ensure [adv] [adv] [conj] [adj] | 9 |
|
| 3 | to ensure [adv] [adv] [conj] possible | 8 |
|
| 4 | to ensure [adv] [adv] [conj] possible | 8 |
|
