| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [conj] [adj] | 17669 |
|
| 2 | [adv] prevent [adj] | 94 |
|
| 3 | [conj] prevent [adj] | 89 |
|
| 4 | [adv] [conj] prevent | 62 |
|
