| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] at [art] | 8757 |
|
| 2 | is [v-ing] [art] | 5977 |
|
| 3 | is at [art] | 1139 |
|
| 4 | is [v-ing] at | 605 |
|
