| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | of [num] [unc] | 2934 |
|
| 2 | of [num] years | 1845 |
|
| 3 | [num] years [unc] | 1331 |
|
| 4 | of years [unc] | 29 |
|
