| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | years [adv] a | 131 |
|
| 2 | years ago a | 104 |
|
| 3 | years later a | 33 |
|
| 4 | years [adv] an | 25 |
|
| 5 | years previously a | 5 |
|
