| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [vb base] [pron] | 7804 |
|
| 2 | problems [vb base] [pron] | 44 |
|
| 3 | what problems [pron] | 16 |
|
| 4 | what problems [vb base] | 14 |
|
