| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | over a [num] year [noun sg] | 76 |
|
| 2 | [vb pp] a [num] year [noun sg] | 28 |
|
| 3 | [vb pp] over a [num] [noun sg] | 26 |
|
| 4 | [vb pp] over a [num] year | 9 |
|
