| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb past] [verb] an | 53 |
|
| 2 | [Wh det] [vb past] [vb pp] an | 38 |
|
| 3 | [Wh det] had [verb] an | 38 |
|
| 4 | [Wh det] [vb past] [to-vb] an | 15 |
|
| 5 | [Wh det] seemed [verb] an | 5 |
|
