| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb base] [verb] a | 11889 |
|
| 2 | [pron] [verb] a problem | 293 |
|
| 3 | [pron] [vb base] a problem | 152 |
|
| 4 | [vb base] [verb] a problem | 92 |
|
| 5 | [pron] [vb base] [verb] problem | 77 |
|
