| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun prp] at [det] | 400 |
|
| 2 | [v-ing] [prep] [noun prp] at | 188 |
|
| 3 | [v-ing] [prep] [noun prp] [det] | 151 |
|
| 4 | [v-ing] [prep] at [det] | 12 |
|
| 5 | [v-ing] [noun prp] at [det] | 7 |
|
