| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] [vb past] [adv] [verb] [prep] | 338 |
|
| 2 | [vb past] [adv] [verb] back [prep] | 100 |
|
| 3 | [Wh pn] [vb past] [verb] back [prep] | 21 |
|
| 4 | [Wh pn] [vb past] [adv] [verb] back | 11 |
|
