| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [num] years ['s] time | 170 |
|
| 2 | [conj] [num] years ['s] time | 28 |
|
| 3 | [conj] [prep] [num] years ['s] | 20 |
|
| 4 | [conj] [prep] [num] years time | 12 |
|
