| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] some [prep] [art] [adj] problem | 5 |
|
| 2 | [vb past] some [prep] [art] problem [prep] | 5 |
|
| 3 | [vb past] some [prep] [art] problem [prep] | 5 |
|
