| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | so [conj] [verb] | 2035 |
|
| 2 | [adv] [conj] prevent | 62 |
|
| 3 | [adv] [conj] prevent | 52 |
|
| 4 | so [conj] prevent | 26 |
|
