| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] to [art] | 19633 |
|
| 2 | back to [art] | 6680 |
|
| 3 | [vb past] back to | 3154 |
|
| 4 | [vb past] back [art] | 643 |
|
