| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | as they [verb] back | 97 |
|
| 2 | as they [verb] back | 97 |
|
| 3 | as they [verb] back | 97 |
|
| 4 | as they [vb past] back | 87 |
|
| 5 | as they walked back | 33 |
|
| 6 | as they walk back | 33 |
|
| 7 | as they get back | 10 |
|
| 8 | as they [vb base] back | 10 |
|
| 9 | as they got back | 7 |
|
| 10 | as they went back | 5 |
|
| 11 | as they come back | 5 |
|
| 12 | as they go back | 5 |
|
