| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [pron] [verb] [be] [v-ing] | 683 |
|
| 2 | [Wh det] i [verb] [be] [verb] | 270 |
|
| 3 | [pron] i [verb] [be] [v-ing] | 212 |
|
