| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [verb] [verb] [prep] a | 4169 |
|
| 2 | [pron] [verb] [verb] a problem | 110 |
|
| 3 | [pron] [verb] [prep] a problem | 16 |
|
| 4 | [verb] [verb] [prep] a problem | 14 |
|
| 5 | [pron] [verb] [verb] [prep] problem | 9 |
|
