| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [adv] a [num] year | 25 |
|
| 2 | [noun] [adv] a [num] year | 20 |
|
| 3 | [noun] over a [num] [noun] | 18 |
|
| 4 | [noun] over a [num] year | 5 |
|
| 5 | [noun] over a [adj] year | 5 |
|
| 6 | [noun] over [art] [num] year | 5 |
|
