| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | back [prep] [art] [noun] | 12678 |
|
| 2 | back [prep] [art] [noun pl] | 1204 |
|
| 3 | [adv] [prep] [art] days | 185 |
|
| 4 | back [prep] [art] day | 109 |
|
| 5 | [adv prt] [prep] [art] days | 96 |
|
| 6 | back [prep] [art] days | 82 |
|
| 7 | back [prep] [art] days | 82 |
|
