| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] over a [noun] | 271 |
|
| 2 | [adv] over a [noun sg] | 265 |
|
| 3 | [adv] [prep] a period | 121 |
|
| 4 | [adv] over a period | 69 |
|
| 5 | [adv] over [art] period | 49 |
|
| 6 | [adv] over a period | 39 |
|
