| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] to ensure [that] [pron] | 78 |
|
| 2 | [vb pp] [verb] [that] [indef pn] | 23 |
|
| 3 | [vb pp] [to-vb] [that] [indef pn] | 20 |
|
| 4 | [verb] to ensure [that] [indef pn] | 10 |
|
| 5 | [vb pp] ensure [that] [indef pn] | 6 |
|
| 6 | [vb pp] to ensure [conj] [indef pn] | 6 |
|
