| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb infin] to ensure [conj] [art] | 10 |
|
| 2 | [adv] [vb infin] to ensure [that] [art] | 10 |
|
| 3 | [adv] [vb infin] to ensure that [art] | 10 |
|
| 4 | [adv] [vb infin] to ensure that [art] | 10 |
|
| 5 | [adv] [vb infin] to ensure [conj] the | 8 |
|
| 6 | [adv] [vb infin] to ensure [conj] the | 8 |
|
| 7 | [adv] [vb infin] to ensure [conj] [art] | 6 |
|
