| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [prep] | 7202 |
|
| 2 | be [v-ing] [prep] | 7196 |
|
| 3 | be [verb] at | 7087 |
|
| 4 | be [v-ing] at | 6347 |
|
| 5 | [be] [v-ing] at | 6347 |
|
| 6 | [be] [v-ing] at | 857 |
|
| 7 | be [v-ing] at | 857 |
|
