| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] over a [adj] period | 39 |
|
| 2 | [adv] over [art] [adj] period | 33 |
|
| 3 | [adv] over [art] long period | 18 |
|
| 4 | [adv prt] over [art] [adj] period | 16 |
|
| 5 | [adv] over the [adj] period | 9 |
|
| 6 | out over [art] [adj] period | 7 |
|
| 7 | out over [art] [adj] period | 7 |
|
| 8 | in over [art] [adj] period | 5 |
|
| 9 | in over [art] [adj] period | 5 |
|
