| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] a [det] [noun] | 2036 |
|
| 2 | [noun] [prep] a [det] [noun pl] | 1636 |
|
| 3 | [noun] [prep] a [adj] years | 237 |
|
| 4 | [noun] [prep] [art] [det] years | 187 |
|
| 5 | [noun] [prep] a [det] year | 172 |
|
| 6 | [noun] [prep] a [det] years | 170 |
|
