| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [vb pp] that [noun] | 539 |
|
| 2 | [vb pp] to ensure that [noun] | 95 |
|
| 3 | is [vb pp] to ensure that | 72 |
|
| 4 | is to ensure that [noun] | 42 |
|
| 5 | is [vb pp] to ensure [noun] | 11 |
|
