| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] must be [verb] by | 177 |
|
| 2 | must be [verb] by [adj] | 70 |
|
| 3 | [noun pl] must be [verb] [adj] | 53 |
|
| 4 | [noun pl] be [verb] by [adj] | 9 |
|
