| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | back [prep] [noun] [subord] they [verb] | 14 |
|
| 2 | back [prep] [noun sg] [subord] they [verb] | 8 |
|
| 3 | back [prep] [noun prp] [subord] they [verb] | 6 |
|
