| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [be] [vb pp] [to-vb] that [adj] | 14 |
|
| 2 | must be [vb pp] [verb] that [adj] | 14 |
|
| 3 | must be [vb pp] [verb] that [adj] | 14 |
|
| 4 | must [be] [vb pp] [verb] that [adj] | 14 |
|
| 5 | must [be] [vb pp] to ensure that [adj] | 12 |
|
| 6 | must [be] [vb pp] ensure that [adj] | 12 |
|
| 7 | must [be] [vb pp] [verb] that [det] | 11 |
|
| 8 | must [be] taken [verb] that [adj] | 10 |
|
