| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [v-ing] [prep] a | 4995 |
|
| 2 | [noun] [verb] on a | 3346 |
|
| 3 | [noun] [v-ing] on [art] | 2782 |
|
| 4 | [noun] [v-ing] on [art] | 2782 |
|
| 5 | [noun] [v-ing] on a | 536 |
|
