| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | over [art] [adj] [adj] period | 15 |
|
| 2 | over the [adj] [adj] period | 15 |
|
| 3 | over a [adj] [adj] period | 10 |
|
| 4 | over [art] [adj] minute period | 6 |
|
| 5 | over [art] [num] [adj] period | 6 |
|
