| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [prep] [adj] [noun] | 5318 |
|
| 2 | be [v-ing] [prep] [det] [noun] | 1960 |
|
| 3 | be [verb] [prep] several [noun] | 597 |
|
| 4 | [be] [v-ing] [prep] several [noun] | 49 |
|
| 5 | be [v-ing] [prep] several [noun] | 49 |
|
