| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [det] | 7726 |
|
| 2 | be [v-ing] at | 6347 |
|
| 3 | [v-ing] at [det] | 1424 |
|
| 4 | be at [det] | 1192 |
|
