| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [prep] [num] years | 1375 |
|
| 2 | [adv] [prep] [num] [unc] | 1282 |
|
| 3 | [prep] [num] years [unc] | 762 |
|
| 4 | [adv] [num] years [unc] | 125 |
|
