| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [am/are] [v-ing] [det] | 2338 |
|
| 2 | [v-ing] at [det] | 1424 |
|
| 3 | [am/are] [v-ing] at | 1407 |
|
| 4 | [am/are] at [det] | 100 |
|
