| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | back and [vb infin] [prep] a [adj] | 5 |
|
| 2 | back and [vb infin] [prep] a [adj] | 5 |
|
| 3 | back and [vb infin] [prep] a [adj] | 5 |
|
