| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [prep] a | 31510 |
|
| 2 | [v-ing] [prep] a | 31501 |
|
| 3 | [v-ing] over [art] | 1641 |
|
| 4 | [verb] over a | 852 |
|
| 5 | [v-ing] over a | 36 |
|
