| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [prep] be [prep] [det] | 71 |
|
| 2 | [verb] [prep] be at [det] | 23 |
|
| 3 | [v-ing] [prep] be at [adj] | 13 |
|
| 4 | [v-ing] [prep] [be] at [det] | 8 |
|
