| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | as [verb] [art] | 4617 |
|
| 2 | as [to-vb] [art] | 1039 |
|
| 3 | [conj] to ensure [art] | 38 |
|
| 4 | as ensure [art] | 16 |
|
| 5 | as to ensure [art] | 12 |
|
| 6 | [subord] to ensure [art] | 12 |
|
