| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] be [v-ing] [noun] | 522 |
|
| 2 | be [v-ing] [noun] at | 422 |
|
| 3 | [vb -s] be [v-ing] at | 89 |
|
| 4 | [vb -s] [v-ing] [noun] at | 17 |
|
