| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [pron] [be] [v-ing] [prep] | 2444 |
|
| 2 | [be] what [pron] [be] [v-ing] | 919 |
|
| 3 | [be] [pron] [be] [v-ing] [prep] | 248 |
|
| 4 | [be] what [pron] [be] [prep] | 113 |
|
| 5 | [be] what [be] [v-ing] [prep] | 46 |
|
