| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] what [pron] [am/are] [verb] | 816 |
|
| 2 | [prep] what [pron] [am/are] [v-ing] | 770 |
|
| 3 | [prep] what [pron] [be] doing | 527 |
|
| 4 | [prep] [pron] [pron] [am/are] doing | 291 |
|
| 5 | [prep] [Wh det] [pron] [am/are] doing | 281 |
|
| 6 | [prep] what [pron] [am/are] doing | 272 |
|
| 7 | [prep] what [pron] [am/are] do | 272 |
|
| 8 | [prep] what [pron] [am/are] doing | 272 |
|
