| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] two [prep] [num] years ' | 5 |
|
| 2 | [prep] two [prep] [num] years ' | 5 |
|
| 3 | two [prep] [num] years ' [noun] | 6 |
|
| 4 | two [prep] [num] years ' [noun sg] | 6 |
|
