| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] [vb pp] [adv] as | 209 |
|
| 2 | must [be] [vb pp] [adv] [conj] | 148 |
|
| 3 | must [be] [vb pp] [adv] as | 18 |
|
| 4 | must [be] [verb] [adv] as | 15 |
|
