| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] back [prep] | 2489 |
|
| 2 | [vb infin] [prep] some | 1009 |
|
| 3 | back [prep] some | 122 |
|
| 4 | [vb infin] back some | 9 |
|
