| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [Wh adv] [pron] [be] [v-ing] | 1249 |
|
| 2 | [verb] [pron] [be] [v-ing] na | 936 |
|
| 3 | [Wh adv] [pron] [be] [v-ing] na | 148 |
|
