| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] ensure that [adj] [noun] | 31 |
|
| 2 | should [verb] [verb] that [adj] [noun] | 21 |
|
| 3 | should [verb] ensure [conj] [adj] [noun] | 5 |
|
