| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to ensure that [pers pn] [am/are] [adv] [verb] | 9 |
|
| 2 | to ensure that [pron] are [adv] [verb] | 9 |
|
| 3 | to ensure that they [am/are] [adv] [verb] | 8 |
|
| 4 | to ensure that [pron] [am/are] [adv] [vb pp] | 8 |
|
| 5 | to ensure that they [am/are] [adv] [verb] | 8 |
|
