| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [v-ing] [prep] [art] | 15200 |
|
| 2 | [prep] [v-ing] [prep] [art] | 15200 |
|
| 3 | [prep] [verb] at [art] | 1086 |
|
| 4 | [prep] [v-ing] at [art] | 1028 |
|
| 5 | [prep] [v-ing] at [art] | 1028 |
|
