| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | back to [det] | 494 |
|
| 2 | back to that | 229 |
|
| 3 | back to this | 106 |
|
| 4 | back to some | 42 |
|
| 5 | back to those | 42 |
|
| 6 | back to these | 27 |
|
| 7 | back to all | 17 |
|
| 8 | back to another | 13 |
|
