| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [prep] a [noun] [conj] | 1396 |
|
| 2 | [v-ing] on [art] [noun] [conj] | 863 |
|
| 3 | [verb] on a [noun] [conj] | 752 |
|
