| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [pron] [be] [v-ing] [prep] | 2444 |
|
| 2 | [vb base] [pron] [be] [v-ing] [prep] | 1217 |
|
| 3 | [vb base] what [pron] [be] [v-ing] | 797 |
|
| 4 | [vb base] what [pron] [be] [prep] | 222 |
|
| 5 | [vb base] what [be] [v-ing] [prep] | 55 |
|
