| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] a [noun] [prep] [noun] | 7647 |
|
| 2 | on a [noun] [prep] [noun] | 3687 |
|
| 3 | [v-ing] on a [noun] [prep] | 521 |
|
| 4 | [v-ing] on a [noun] [noun] | 365 |
|
| 5 | [v-ing] on [noun] [prep] [noun] | 332 |
|
