| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | since it [verb] [adj] years [adv] | 8 |
|
| 2 | since it [verb] [adj] years ago | 8 |
|
| 3 | since it [verb] [num] years [adv] | 8 |
|
| 4 | since it [vb past] [adj] years [adv] | 8 |
|
| 5 | since it [verb] [adj] years ago | 8 |
|
