| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] what [pron] [be] [v-ing] [prep] | 275 |
|
| 2 | [prep] what [pron] [be] [v-ing] [prep] | 275 |
|
| 3 | of [pron] [pron] [be] [v-ing] [prep] | 118 |
|
| 4 | of what [pron] [be] [verb] [prep] | 102 |
|
| 5 | of [Wh det] [pron] [be] [v-ing] [prep] | 95 |
|
| 6 | of what [pron] [be] [v-ing] [prep] | 92 |
|
| 7 | of what [pron] [be] [v-ing] [prep] | 92 |
|
