| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun] [v-ing] at [art] | 197 |
|
| 2 | group [prep] [noun] at [art] | 30 |
|
| 3 | group [prep] [noun] [v-ing] [art] | 29 |
|
| 4 | group [prep] [noun] [v-ing] at | 8 |
|
