| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to ensure that they [be] [adv] [vb pp] | 8 |
|
| 2 | to ensure [conj] they be [adv] [vb pp] | 8 |
|
| 3 | to ensure that they [be] [adv] [vb pp] | 8 |
|
| 4 | to ensure [that] they [be] [adv] [vb pp] | 8 |
|
| 5 | to ensure [conj] they [am/are] [adv] [vb pp] | 7 |
|
| 6 | to ensure [conj] they are [adv] [vb pp] | 7 |
|
