| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | back at [det] [noun sg] | 31 |
|
| 2 | back at any [noun] | 13 |
|
| 3 | back at that [noun] | 10 |
|
| 4 | back at [det] time | 9 |
|
| 5 | back at [det] time | 9 |
|
| 6 | back at [det] moment | 6 |
|
| 7 | back at [det] moment | 6 |
|
| 8 | back at this [noun] | 6 |
|
