| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [v-ing] at [art] | 1028 |
|
| 2 | [to-vb] [prep] [v-ing] [art] | 793 |
|
| 3 | [to-vb] [prep] at [art] | 37 |
|
| 4 | [to-vb] [v-ing] at [art] | 36 |
|
| 5 | [to-vb] [prep] [v-ing] at | 27 |
|
