| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] back [prep] [noun] | 558 |
|
| 2 | [verb] back at [noun] | 301 |
|
| 3 | [vb infin] [adv] at [noun] | 278 |
|
| 4 | [vb infin] [adv prt] at [noun] | 142 |
|
| 5 | [vb infin] back at [noun] | 16 |
|
