| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [verb] at the | 84 |
|
| 2 | must [vb infin] at the | 84 |
|
| 3 | [modal v] remain at the | 22 |
|
| 4 | [vb mod] remain at the | 22 |
|
| 5 | must remain [prep] the | 16 |
|
| 6 | must remain [prep] the | 16 |
|
| 7 | must remain at the | 5 |
|
| 8 | must remain at the | 5 |
|
| 9 | must remain at [art] | 5 |
|
| 10 | must remain at the | 5 |
|
