| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | back at [adj] | 189 |
|
| 2 | back [prep] those | 80 |
|
| 3 | back [prep] those | 80 |
|
| 4 | back at [det] | 77 |
|
| 5 | [adv] at those | 48 |
|
| 6 | [adv prt] at those | 14 |
|
| 7 | back at those | 5 |
|
| 8 | back at those | 5 |
|
| 9 | back at those | 5 |
|
