| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | two years ' [noun sg] | 167 |
|
| 2 | [prep] two years ' | 119 |
|
| 3 | [prep] two years [noun sg] | 40 |
|
| 4 | [prep] years ' [noun sg] | 20 |
|
