| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [pron] [prep] [v-ing] [prep] | 23 |
|
| 2 | [be] [pers pn] [prep] [v-ing] [prep] | 19 |
|
| 3 | [is] [pers pn] [prep] [verb] [prep] | 14 |
|
