| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [pers pn] [be] [v-ing] for | 449 |
|
| 2 | [pers pn] [vb base] [be] [v-ing] for | 334 |
|
| 3 | what [pers pn] [vb base] [be] [v-ing] | 250 |
|
| 4 | what [pers pn] [vb base] [be] for | 8 |
|
