| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | so [subord] [verb] | 1639 |
|
| 2 | [adv] [subord] prevent | 40 |
|
| 3 | [adv] [subord] prevent | 40 |
|
| 4 | so [conj] prevent | 26 |
|
| 5 | so [subord] prevent | 26 |
|
