| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] back to | 666 |
|
| 2 | [adv] back to | 601 |
|
| 3 | so [adv] to | 405 |
|
| 4 | so [adv prt] to | 33 |
|
| 5 | so back [prep] | 19 |
|
| 6 | so back to | 16 |
|
| 7 | so back to | 16 |
|
