| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] at [art] | 8757 |
|
| 2 | [am/are] [v-ing] [art] | 7876 |
|
| 3 | [am/are] [v-ing] at | 1407 |
|
| 4 | [am/are] at [art] | 820 |
|
