| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [noun pl] back to | 5 |
|
| 2 | [noun pl] [verb] back to | 6 |
|
| 3 | [noun pl] back to [noun sg] | 17 |
|
| 4 | [noun pl] back to [noun] | 17 |
|
| 5 | [noun pl] back to back | 13 |
|
| 6 | [noun pl] back to back | 13 |
|
