| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [vb pp] since the | 50 |
|
| 2 | had [vb pp] since the | 49 |
|
| 3 | [vb past] passed since the | 5 |
|
| 4 | [vb past] elapsed since the | 5 |
|
