| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | back at [det] | 77 |
|
| 2 | back at [num] | 53 |
|
| 3 | back at [adj] | 50 |
|
| 4 | back at all | 15 |
|
| 5 | back at all | 15 |
|
| 6 | back at any | 14 |
|
| 7 | back at any | 14 |
|
| 8 | back at some | 12 |
|
| 9 | back at some | 12 |
|
| 10 | back at that | 11 |
|
| 11 | back at that | 11 |
|
| 12 | back at this | 10 |
|
| 13 | back at this | 10 |
|
| 14 | back at [num ord] | 9 |
|
| 15 | back at last | 6 |
|
| 16 | back at two | 6 |
|
| 17 | back at last | 6 |
|
| 18 | back at two | 6 |
|
| 19 | back at half | 5 |
|
| 20 | back at those | 5 |
|
| 21 | back at head | 5 |
|
| 22 | back at five | 5 |
|
| 23 | back at half | 5 |
|
| 24 | back at five | 5 |
|
| 25 | back at head | 5 |
|
| 26 | back at those | 5 |
|
