| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] year | 1711 |
|
| 2 | [prep] a [adj] two | 129 |
|
| 3 | [prep] [adj] two year | 82 |
|
| 4 | [prep] a two year | 67 |
|
| 5 | a [adj] two year | 57 |
|
