| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must be | 9038 |
|
| 2 | must be [adj] | 3713 |
|
| 3 | [pron] be [adj] | 1468 |
|
| 4 | [pron] must [adj] | 10 |
|
