| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [be] [verb] [verb] a problem | 9 |
|
| 2 | [pers pn] [be] [verb] [verb] a problem | 8 |
|
| 3 | [be] [verb] [verb] a [adj] problem | 6 |
|
| 4 | [be] [verb] [verb] a [adj] problem | 5 |
|
