| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [be] [verb] [prep] the | 1458 |
|
| 2 | [be] [verb] back [prep] the | 249 |
|
| 3 | must [verb] back [prep] the | 43 |
|
| 4 | must [be] [verb] back [prep] | 19 |
|
