| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [art] [noun] over [art] period | 12 |
|
| 2 | [verb] [art] [noun sg] over [art] period | 11 |
|
| 3 | [verb] [art] [noun] over a period | 8 |
|
| 4 | [verb] the [noun] over [art] period | 8 |
|
