| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [noun] be [verb] [prep] | 4953 |
|
| 2 | [art] [noun] be [v-ing] [prep] | 3978 |
|
| 3 | a [noun] be [v-ing] [prep] | 394 |
|
| 4 | a [noun] [be] [v-ing] [prep] | 391 |
|
