| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adj] ensure that [adj] [noun] | 10 |
|
| 2 | be [adj] to ensure that [adj] [noun] | 10 |
|
| 3 | be [adj] ensure that [adj] [noun pl] | 7 |
|
| 4 | is [adj] ensure that [adj] [noun] | 7 |
|
