| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [adv] [prep] a period [prep] | 32 |
|
| 2 | [vb pp] [adv] [prep] a period [prep] | 32 |
|
| 3 | [vb pp] [adv] over a [noun sg] [prep] | 31 |
|
| 4 | [verb] [adv] over a period [prep] | 31 |
|
| 5 | [vb pp] [adv] over a [noun] [prep] | 31 |
|
| 6 | [vb pp] [adv] over [art] period [prep] | 19 |
|
| 7 | [vb pp] [adv] over a period [prep] | 16 |
|
| 8 | [vb pp] [adv] over a period [prep] | 16 |
|
