| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must be [art] | 1225 |
|
| 2 | [pron] must be at | 75 |
|
| 3 | must be at [art] | 23 |
|
| 4 | [pron] be at [art] | 8 |
|
