| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to ensure that [pron] comply with | 7 |
|
| 2 | to ensure [that] [pers pn] comply with | 7 |
|
| 3 | to ensure [that] [pron] comply with | 5 |
|
| 4 | to ensure [that] they comply with | 5 |
|
| 5 | to ensure [that] they comply with | 5 |
|
