| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] a [noun] [prep] | 31230 |
|
| 2 | a [noun] [prep] [v-ing] | 14251 |
|
| 3 | [vb past] [noun] [prep] [v-ing] | 1307 |
|
| 4 | [vb past] a [noun] [v-ing] | 1298 |
|
