| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | of [indef pn] [prep] [num] year | 7 |
|
| 2 | of [indef pn] [prep] [adj] years | 7 |
|
| 3 | of one [prep] [adj] year | 5 |
|
| 4 | of [indef pn] to [adj] year | 5 |
|
