| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] must [be] [vb pp] | 1929 |
|
| 2 | must [adv] [be] [vb pp] | 1540 |
|
| 3 | [pers pn] must [adv] [be] | 690 |
|
| 4 | [pers pn] [adv] [be] [vb pp] | 135 |
|
