| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [num] years [pron] | 455 |
|
| 2 | time [prep] [num] years | 238 |
|
| 3 | time [prep] [num] [pron] | 12 |
|
| 4 | time [prep] years [pron] | 7 |
|
