| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] at [art] [noun] | 6905 |
|
| 2 | [be] [v-ing] at [art] [noun] | 1683 |
|
| 3 | [be] happening [prep] [art] [noun] | 314 |
|
| 4 | [be] happen at [art] [noun] | 44 |
|
