| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [prep] a [noun] | 16296 |
|
| 2 | [be] [v-ing] [prep] [noun] | 1648 |
|
| 3 | [be] [prep] a [noun] | 1284 |
|
| 4 | [be] [v-ing] a [noun] | 841 |
|
| 5 | [be] [v-ing] [prep] a | 722 |
|
