| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] to ensure that | 210 |
|
| 2 | up [verb] that | 83 |
|
| 3 | up [to-vb] that | 54 |
|
| 4 | up to ensure [conj] | 7 |
|
| 5 | up ensure that | 7 |
|
