| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] back [prep] [noun prp] [subord] | 10 |
|
| 2 | [vb past] back to [noun] [subord] | 8 |
|
| 3 | [vb past] back [prep] [noun sg] [subord] | 7 |
|
| 4 | [vb past] back [prep] [noun] after | 5 |
|
