| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] years ' | 34 |
|
| 2 | [prep] a [adj] years [unc] | 34 |
|
| 3 | [prep] a [adj] years ['s] | 34 |
|
| 4 | [prep] a [adj] years ' | 34 |
|
| 5 | [prep] a [det] years [unc] | 27 |
|
| 6 | [prep] a few years [unc] | 27 |
|
| 7 | [prep] a few years [unc] | 27 |
|
| 8 | in a [adj] years [unc] | 24 |
|
| 9 | [prep] a [num] years [unc] | 7 |
|
| 10 | [prep] a hundred years [unc] | 5 |
|
| 11 | [prep] a hundred years [unc] | 5 |
|
