| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must be [verb] by | 129 |
|
| 2 | [pron] must be [verb] [adj] | 73 |
|
| 3 | must be [verb] by [adj] | 70 |
|
| 4 | [pron] be [verb] by [adj] | 5 |
|
