| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [v-ing] [pers pn] | 2724 |
|
| 2 | [is] [v-ing] at | 874 |
|
| 3 | [v-ing] [pers pn] at | 675 |
|
| 4 | [is] [pers pn] at | 49 |
|
