| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [verb] [verb] [prep] a period | 15 |
|
| 2 | [noun] [verb] [verb] over a [noun] | 12 |
|
| 3 | [noun] [verb] [verb] over [art] period | 7 |
|
| 4 | [noun] [verb] [verb] over [art] period | 7 |
|
| 5 | [noun] [verb] [verb] over a period | 5 |
|
