| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] and [verb] back [prep] | 20 |
|
| 2 | [vb infin] and [vb infin] back [prep] | 16 |
|
| 3 | [vb infin] and [verb] back to | 8 |
|
