| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [be] [verb] ensure that [adj] | 30 |
|
| 2 | [modal v] [be] [verb] ensure that [adj] | 30 |
|
| 3 | must [be] [verb] [verb] that [adj] | 14 |
|
| 4 | must [be] [verb] ensure [conj] [adj] | 12 |
|
| 5 | must [be] [verb] ensure that [adj] | 12 |
|
| 6 | must [be] [verb] ensure that [adj] | 12 |
|
| 7 | must [be] [verb] ensure [that] [adj] | 12 |
|
