| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | of [num] years it | 11 |
|
| 2 | for [num] years it | 11 |
|
| 3 | after [num] years it | 9 |
|
| 4 | within [num] years it | 9 |
|
| 5 | [prep] three years it | 8 |
|
| 6 | [prep] two years it | 5 |
|
| 7 | [prep] five years it | 5 |
|
