| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [noun sg] [prep] [adj] years | 49 |
|
| 2 | a [noun] [prep] [adj] years | 45 |
|
| 3 | a [noun] [prep] recent years | 24 |
|
| 4 | a [noun] in [adj] years | 22 |
|
| 5 | a [noun] of [adj] years | 20 |
|
| 6 | a couple [prep] [adj] years | 7 |
|
| 7 | a couple [prep] [adj] years | 7 |
|
