| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] until several years | 5 |
|
| 2 | until several years later | 5 |
|
| 3 | until several years [adv] | 5 |
|
| 4 | until several years later | 5 |
|
| 5 | until several years [adv] | 5 |
|
