| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [num] years [adv] at [art] | 46 |
|
| 2 | years [adv] at [art] time | 12 |
|
| 3 | [num] years at [art] time | 11 |
|
| 4 | [num] [adv] at [art] time | 5 |
|
