| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun prp] a [adj] years | 36 |
|
| 2 | [prep] [noun prp] a [adj] years | 36 |
|
| 3 | [prep] [noun prp] a few years | 31 |
|
| 4 | [prep] [noun prp] a [det] years | 31 |
|
| 5 | [prep] [noun prp] a few years | 31 |
|
| 6 | in [noun prp] a [adj] years | 18 |
|
| 7 | in [noun prp] a [adj] years | 18 |
|
| 8 | to [noun prp] a [adj] years | 5 |
|
| 9 | [prep] [noun prp] a [num] years | 5 |
|
| 10 | to [noun prp] a [adj] years | 5 |
|
