| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] for [det] | 4330 |
|
| 2 | back [prep] [det] | 1244 |
|
| 3 | back [prep] [det] | 1244 |
|
| 4 | back for [adj] | 180 |
|
| 5 | back for [det] | 110 |
|
