| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [num] years ' [noun] | 684 |
|
| 2 | [noun pl] [prep] [num] years ' | 32 |
|
| 3 | [noun pl] [prep] [num] years [noun] | 13 |
|
| 4 | [noun pl] [prep] [num] ' [noun] | 7 |
|
