| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [noun] [prep] | 455003 |
|
| 2 | [v-ing] [noun] [prep] | 54848 |
|
| 3 | [v-ing] a [noun] | 43505 |
|
| 4 | [v-ing] a [prep] | 25 |
|
