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