| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] back at [noun prp] | 35 |
|
| 2 | looking back at [noun] | 17 |
|
| 3 | [v-ing] back at [noun sg] | 11 |
|
| 4 | arriving back at [noun] | 7 |
|
