| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | over [art] [adj] six months | 38 |
|
| 2 | over [art] [adj] six months | 38 |
|
| 3 | over the [adj] six months | 38 |
|
| 4 | over [art] past six months | 32 |
|
| 5 | over [art] previous six months | 5 |
|
