| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [v-ing] [pers pn] [prep] | 373 |
|
| 2 | [is] [v-ing] [pers pn] [prep] | 373 |
|
| 3 | [be] [v-ing] [pers pn] at | 130 |
|
| 4 | [is] [verb] [pers pn] at | 29 |
|
| 5 | [is] [v-ing] [pron] at | 29 |
|
| 6 | [is] [v-ing] [pers pn] at | 19 |
|
