| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [art] | 32030 |
|
| 2 | [v-ing] at [art] | 8757 |
|
| 3 | be [v-ing] at | 6347 |
|
| 4 | be at [art] | 5731 |
|
