| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | back [prep] [art] [adj] [noun] | 2676 |
|
| 2 | back [prep] [art] [adj] [noun sg] | 2238 |
|
| 3 | [adv] [prep] [art] [adj] time | 1516 |
|
| 4 | back [prep] [art] [adj] time | 36 |
|
