| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] by [noun] | 6189 |
|
| 2 | must be [verb] by | 795 |
|
| 3 | must be [verb] [noun] | 122 |
|
| 4 | must [verb] by [noun] | 19 |
|
| 5 | must be by [noun] | 9 |
|
