| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [modal v] be at [art] | 178 |
|
| 2 | [pron] must be [prep] [art] | 126 |
|
| 3 | [pron] must [be] at [art] | 9 |
|
| 4 | [pron] must [be] at [art] | 9 |
|
| 5 | [pron] must be at [art] | 9 |
|
| 6 | [pron] must be at [art] | 9 |
|
