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