| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | back to the [noun] [to-vb] [conj] | 13 |
|
| 2 | back to the [noun] [to-vb] [conj] | 13 |
|
| 3 | back to the [noun sg] [to-vb] [conj] | 11 |
|
| 4 | back to the [noun] [to-vb] [subord] | 6 |
|
