| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] be at [noun] | 40 |
|
| 2 | [vb mod] [verb] be at [noun] | 40 |
|
| 3 | should [verb] be [prep] [noun] | 35 |
|
| 4 | should [verb] be at [noun] | 10 |
|
| 5 | should [verb] [be] at [noun] | 10 |
|
