| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [vb pp] at the [noun] | 1274 |
|
| 2 | must [be] [vb pp] at the | 63 |
|
| 3 | must [be] [vb pp] the [noun] | 44 |
|
| 4 | must [be] [vb pp] at [noun] | 28 |
|
| 5 | must [be] at the [noun] | 16 |
|
