| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | so as [verb] | 1556 |
|
| 2 | so as [to-vb] | 1551 |
|
| 3 | [adv] as to improve | 12 |
|
| 4 | [adv] as to improve | 12 |
|
| 5 | so as improve | 11 |
|
| 6 | so as to improve | 11 |
|
| 7 | so as to improve | 11 |
|
| 8 | so [subord] to improve | 11 |
|
| 9 | so [conj] to improve | 11 |
|
