| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] us [pron] must | 6 |
|
| 2 | [prep] us [pron] must | 6 |
|
| 3 | us [conj] [pron] must | 10 |
|
| 4 | us [coord] [pron] must | 7 |
|
