| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | back at [adj] [noun sg] | 57 |
|
| 2 | back at [det] [noun sg] | 31 |
|
| 3 | back at [adj] [noun sg] | 25 |
|
| 4 | back at any [noun sg] | 11 |
|
| 5 | back at any [noun sg] | 11 |
|
| 6 | back at that [noun sg] | 10 |
|
| 7 | back at that [noun sg] | 10 |
|
| 8 | back at [adj] time | 10 |
|
| 9 | back at this [noun sg] | 6 |
|
| 10 | back at this [noun sg] | 6 |
|
| 11 | back at [adj] moment | 6 |
|
| 12 | back at [adj] office | 5 |
|
| 13 | back at head [noun sg] | 5 |
|
| 14 | back at head [noun sg] | 5 |
|
