| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [v-ing] a | 5515 |
|
| 2 | on [verb] a | 269 |
|
| 3 | on [v-ing] [art] | 220 |
|
| 4 | on [v-ing] [art] | 220 |
|
| 5 | on [v-ing] a | 42 |
|
