| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] [prep] [be] a | 537 |
|
| 2 | [pers pn] must [be] a | 340 |
|
| 3 | [pers pn] must [prep] [be] | 89 |
|
| 4 | must [prep] [be] a | 18 |
|
| 5 | [pers pn] must [prep] a | 7 |
|
