| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] us must | 25 |
|
| 2 | [prep] us must | 25 |
|
| 3 | of us must | 22 |
|
| 4 | of us must | 22 |
|
| 5 | us [pron] must | 8 |
|
| 6 | us [pers pn] must | 7 |
|
| 7 | us must [vb infin] | 20 |
|
| 8 | us must [verb] | 20 |
|
| 9 | us must have | 5 |
|
| 10 | us must have | 5 |
|
