| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | back at the [noun] [prep] | 152 |
|
| 2 | back at the [noun sg] [prep] | 138 |
|
| 3 | back at the [noun] of | 94 |
|
| 4 | back at the [noun] of | 94 |
|
| 5 | back at the [noun] in | 18 |
|
| 6 | back at the [noun] in | 18 |
|
| 7 | back at the end [prep] | 17 |
|
| 8 | back at the end [prep] | 17 |
|
| 9 | back at the [noun pl] [prep] | 11 |
|
| 10 | back at the house [prep] | 8 |
|
| 11 | back at the house [prep] | 8 |
|
| 12 | back at the [noun] for | 7 |
|
| 13 | back at the [noun] with | 7 |
|
| 14 | back at the [noun] for | 7 |
|
| 15 | back at the [noun] with | 7 |
|
| 16 | back at the top [prep] | 6 |
|
| 17 | back at the top [prep] | 6 |
|
| 18 | back at the start [prep] | 6 |
|
| 19 | back at the start [prep] | 6 |
|
| 20 | back at the beginning [prep] | 6 |
|
| 21 | back at the beginning [prep] | 6 |
|
| 22 | back at the centre [prep] | 5 |
|
| 23 | back at the centre [prep] | 5 |
|
| 24 | back at the [noun] at | 5 |
|
| 25 | back at the [noun] at | 5 |
|
