| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | since it [vb past] [adj] year ago | 8 |
|
| 2 | since it [verb] [adj] years ago | 8 |
|
| 3 | since it [verb] [adj] year ago | 8 |
|
| 4 | since it [verb] [num] year ago | 8 |
|
