| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [vb base] [conj] | 5524 |
|
| 2 | [conj] to ensure [conj] | 220 |
|
| 3 | [vb base] to ensure [conj] | 164 |
|
| 4 | [conj] [vb base] to ensure | 24 |
|
