| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [det] years | 581 |
|
| 2 | [prep] a few years | 580 |
|
| 3 | for a [det] years | 175 |
|
| 4 | within a [det] years | 123 |
|
| 5 | in a [det] years | 113 |
|
| 6 | after a [det] years | 54 |
|
| 7 | of a [det] years | 45 |
|
| 8 | until a [det] years | 31 |
|
| 9 | over a [det] years | 11 |
|
| 10 | to a [det] years | 9 |
|
