| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | back and [verb] [prep] a [adj] | 12 |
|
| 2 | back [coord] [verb] [prep] a [adj] | 8 |
|
| 3 | back [coord] [vb infin] [prep] a [adj] | 5 |
|
