| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | back [art] [noun sg] [subord] | 20 |
|
| 2 | back the [noun] [subord] | 19 |
|
| 3 | back a [noun] [subord] | 8 |
|
| 4 | back [art] [noun pl] [subord] | 7 |
|
| 5 | back [art] [noun] while | 6 |
|
