| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [v-ing] a [noun] [noun] [pron] | 71 |
|
| 2 | by [v-ing] [art] [noun] [noun] [pron] | 36 |
|
| 3 | by [verb] a [noun] [noun] [pron] | 16 |
|
