| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [pers pn] [be] [v-ing] | 8878 |
|
| 2 | [pers pn] [vb base] [be] [v-ing] | 4568 |
|
| 3 | what [pers pn] [vb base] [be] | 1495 |
|
| 4 | what [pers pn] [vb base] [v-ing] | 70 |
|
