| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] [pers pn] | 14943 |
|
| 2 | [be] [v-ing] at | 6347 |
|
| 3 | [v-ing] [pers pn] at | 675 |
|
| 4 | [be] [pers pn] at | 177 |
|
