| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] over a period | 311 |
|
| 2 | [n mass] over [art] period | 26 |
|
| 3 | [n mass] over [art] period | 26 |
|
| 4 | [n mass] over a [noun] | 19 |
|
| 5 | [n mass] [prep] a period | 16 |
|
| 6 | [n mass] [prep] a period | 16 |
|
| 7 | [n mass] over a period | 9 |
|
| 8 | [n mass] over a period | 9 |
|
