| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | happened a [adj] time ago | 8 |
|
| 2 | happened a [adj] time [adv] | 8 |
|
| 3 | happened a [adj] time ago | 8 |
|
| 4 | happened a [adj] time [adv] | 8 |
|
