| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [prep] [num] [noun] | 630 |
|
| 2 | be [verb] at [num] [noun] | 510 |
|
| 3 | be [v-ing] at [adj] [noun] | 443 |
|
| 4 | [be] [v-ing] at [num] [noun] | 64 |
|
