| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | so [conj] to prevent [art] | 8 |
|
| 2 | so [subord] prevent [art] | 8 |
|
| 3 | so [conj] prevent [art] | 8 |
|
| 4 | so as prevent [art] | 8 |
|
| 5 | so as prevent [art] | 8 |
|
| 6 | so [conj] prevent [art] | 8 |
|
| 7 | so [conj] prevent the | 6 |
|
| 8 | so [conj] prevent the | 6 |
|
