| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [pron] [modal v] [verb] | 5648 |
|
| 2 | [pron] [pron] [modal v] do | 2844 |
|
| 3 | [Wh det] [pron] [modal v] do | 1995 |
|
| 4 | what [pron] [modal v] do | 1893 |
|
