| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] he [vb past] at the time | 7 |
|
| 2 | [Wh det] he [vb past] at [art] time | 7 |
|
| 3 | what he [vb past] at [art] time | 5 |
|
