| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] that it [is] [adv] | 1332 |
|
| 2 | to ensure that it [is] [adv] | 21 |
|
| 3 | [verb] to ensure that it [is] | 20 |
|
| 4 | [verb] to ensure it [is] [adv] | 5 |
|
