| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [adv] [verb] | 36778 |
|
| 2 | [vb past] back [adv] | 903 |
|
| 3 | [vb past] back [verb] | 605 |
|
| 4 | back [adv] [verb] | 215 |
|
