| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [num] years ' [noun] | 1138 |
|
| 2 | [prep] [num] years ' | 747 |
|
| 3 | [prep] [num] years [noun] | 424 |
|
| 4 | [prep] years ' [noun] | 21 |
|
| 5 | [prep] [num] ' [noun] | 17 |
|
