| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] for [noun] | 2688 |
|
| 2 | back for [noun] | 167 |
|
| 3 | [vb infin] back [noun] | 89 |
|
| 4 | [vb infin] back for | 78 |
|
