| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [pron] [vb past] | 14601 |
|
| 2 | [pron] [vb past] do | 4986 |
|
| 3 | what [pron] do | 4218 |
|
| 4 | what [vb past] do | 12 |
|
