| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [pos pn] [noun] over [art] period | 5 |
|
| 2 | [prep] [pron] [noun] over a period | 5 |
|
| 3 | [prep] [pron] [noun] over a period | 5 |
|
| 4 | [prep] [pron] [noun] over [art] period | 5 |
|
| 5 | [prep] [pron] [noun] over [art] period | 5 |
|
