| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [num] years [conj] | 4380 |
|
| 2 | [num] years [unc] | 1331 |
|
| 3 | [num] [unc] [conj] | 552 |
|
| 4 | years [unc] [conj] | 17 |
|
