| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they must [verb] [pron] [prep] [det] | 6 |
|
| 2 | they must [verb] [pron] [prep] [det] | 6 |
|
| 3 | they must [verb] [pron] [det] [noun] | 6 |
|
