| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] must be [verb] at [noun sg] | 9 |
|
| 2 | [noun sg] must be [verb] at [noun sg] | 5 |
|
| 3 | must be [verb] at [art] [noun sg] | 56 |
|
| 4 | must be [verb] at [art] [noun sg] | 56 |
|
| 5 | must be [verb] at the [noun sg] | 50 |
|
| 6 | must be [verb] at the [noun sg] | 50 |
|
| 7 | must be [verb] at [adj] [noun sg] | 21 |
|
| 8 | must be [verb] at [det] [noun sg] | 18 |
|
| 9 | must be [verb] at this [noun sg] | 11 |
|
| 10 | must be [verb] at this [noun sg] | 11 |
|
| 11 | must be [verb] at a [noun sg] | 5 |
|
