| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | so [verb] that | 570 |
|
| 2 | [adv] to ensure that | 210 |
|
| 3 | so ensure that | 16 |
|
| 4 | so [to-vb] that | 13 |
|
| 5 | so to ensure [conj] | 5 |
|
