| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [adv] [conj] [verb] [conj] | 60 |
|
| 2 | [vb pp] [adv] [conj] [to-vb] [conj] | 10 |
|
| 3 | [vb pp] [adv] [conj] ensure [conj] | 7 |
|
| 4 | [verb] [adv] [conj] to ensure [conj] | 7 |
|
| 5 | [vb pp] [adv] [conj] to ensure [conj] | 6 |
|
