| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] so far as possible ensure | 5 |
|
| 2 | [vb mod] so far as possible ensure | 5 |
|
| 3 | so far as possible ensure that | 5 |
|
| 4 | so far as possible ensure [conj] | 5 |
|
| 5 | so far as possible ensure that | 5 |
|
| 6 | so far as possible ensure [that] | 5 |
|
