| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [num] year 's [noun] | 57 |
|
| 2 | [prep] [num] year [noun] [conj] | 54 |
|
| 3 | [prep] [num] 's [noun] [conj] | 13 |
|
| 4 | [num] year 's [noun] [conj] | 11 |
|
