| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [conj] [adv] | 35042 |
|
| 2 | [conj] [adv] prevent | 144 |
|
| 3 | [adv] [adv] prevent | 95 |
|
| 4 | [adv] [conj] prevent | 62 |
|
