| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] those [Wh pn] [vb past] previously | 5 |
|
| 2 | [prep] those [Wh pn] [vb past] previously | 5 |
|
| 3 | those [Wh pn] [vb past] previously [vb pp] | 8 |
|
| 4 | those [Wh pn] [vb past] previously [verb] | 8 |
|
