| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] a [num] [noun] period | 111 |
|
| 2 | [noun] [prep] a [num] [noun] period | 111 |
|
| 3 | [noun] over [art] [num] [noun] period | 85 |
|
| 4 | [noun] over [art] [num] [noun] period | 85 |
|
| 5 | [noun] over a [num] [noun] [noun sg] | 77 |
|
| 6 | [noun] over a [num] [noun] [noun] | 77 |
|
| 7 | [noun] over a [adj] [noun] period | 76 |
|
| 8 | [noun] over a [num] [noun] period | 69 |
|
| 9 | [noun] over a [num] [noun] period | 69 |
|
| 10 | [noun] over a [num] [noun] period | 69 |
|
