| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [pers pn] | 1573 |
|
| 2 | be [v-ing] at | 857 |
|
| 3 | [v-ing] [pers pn] at | 675 |
|
| 4 | be [pers pn] at | 9 |
|
