| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [noun] over a [noun] | 102 |
|
| 2 | a [noun] over a [noun sg] | 99 |
|
| 3 | [art] [noun] over a period | 55 |
|
| 4 | [art] [noun] over a period | 55 |
|
| 5 | a [noun] [prep] a period | 31 |
|
| 6 | a [noun] [prep] a period | 31 |
|
| 7 | a [noun] over [art] period | 15 |
|
| 8 | a [noun] over [art] period | 15 |
|
| 9 | a [noun] over a period | 12 |
|
| 10 | a [noun] over a period | 9 |
|
| 11 | a [noun] over a period | 9 |
|
| 12 | a [noun] over a period | 9 |
|
