| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [num] year | 521 |
|
| 2 | [prep] a [num] year | 521 |
|
| 3 | over a [num] [noun] | 175 |
|
| 4 | over a [num] [noun sg] | 156 |
|
| 5 | over [art] [num] year | 106 |
|
| 6 | over a [adj] year | 82 |
|
| 7 | over a [num] year | 81 |
|
| 8 | over a [num] year | 78 |
|
