| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] back on [adv] | 21 |
|
| 2 | [noun sg] back on [adv] | 19 |
|
| 3 | [noun] back on again | 12 |
|
| 4 | [noun] back on again | 12 |
|
