| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [pron] [be] [v-ing] [prep] | 2444 |
|
| 2 | [to-vb] what [pron] [be] [v-ing] | 426 |
|
| 3 | [to-vb] [pron] [be] [v-ing] [prep] | 197 |
|
| 4 | [to-vb] what [be] [v-ing] [prep] | 86 |
|
| 5 | [to-vb] what [pron] [be] [prep] | 80 |
|
