| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] [verb] a [noun] | 9808 |
|
| 2 | [vb base] [verb] [art] problem | 232 |
|
| 3 | [vb base] [verb] [art] problem | 232 |
|
| 4 | [verb] [verb] a problem | 197 |
|
| 5 | [vb base] [verb] a problem | 92 |
|
