| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] [modal v] [verb] be [verb] a | 125 |
|
| 2 | [pers pn] must [verb] be [verb] [art] | 17 |
|
| 3 | [pron] must [verb] be [verb] a | 9 |
|
| 4 | [pers pn] must [verb] [be] [verb] a | 9 |
|
