| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] on [noun] | 2211 |
|
| 2 | back on [noun] | 521 |
|
| 3 | [vb infin] back on | 190 |
|
| 4 | [vb infin] back [noun] | 89 |
|
