| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] by a [num] year | 18 |
|
| 2 | [vb pp] by a [num] year | 17 |
|
| 3 | by a [num] year [adj] | 14 |
|
| 4 | by a [num] year [adj] | 14 |
|
| 5 | by a [num] year old | 12 |
|
| 6 | by a [num] year old | 12 |
|
| 7 | by a [num] year [noun] | 7 |
|
| 8 | by a [num] year [noun sg] | 6 |
|
