| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] be at | 1237 |
|
| 2 | [v-ing] be [prep] | 399 |
|
| 3 | [v-ing] be [prep] | 399 |
|
| 4 | [v-ing] [be] at | 28 |
|
| 5 | [v-ing] be at | 28 |
|
