| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] a [det] | 2702 |
|
| 2 | [noun] [prep] [det] years | 1599 |
|
| 3 | [prep] a [det] years | 581 |
|
| 4 | [noun] a [det] years | 215 |
|
