| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] so as [verb] | 749 |
|
| 2 | [noun] so as [to-vb] | 749 |
|
| 3 | [noun] so [subord] to ensure | 20 |
|
| 4 | [noun] [adv] as to ensure | 20 |
|
| 5 | [noun] so as ensure | 20 |
|
| 6 | [noun] so as to ensure | 20 |
|
| 7 | [noun] so [conj] to ensure | 20 |
|
