| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | ensure that [art] [noun] | 2006 |
|
| 2 | that [art] good [noun] | 546 |
|
| 3 | ensure [art] good [noun] | 62 |
|
| 4 | ensure that [art] good | 18 |
|
| 5 | ensure that good [noun] | 6 |
|
