| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what problem do [pers pn] | 8 |
|
| 2 | [pron] problem do [pers pn] | 8 |
|
| 3 | what problem do [pers pn] | 8 |
|
| 4 | [Wh det] problem do [pers pn] | 8 |
|
| 5 | problem do [pers pn] [verb] | 12 |
|
| 6 | problem do [pers pn] [vb infin] | 12 |
|
