| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | did not [vb infin] back | 66 |
|
| 2 | do not look back | 17 |
|
| 3 | do not come back | 14 |
|
| 4 | do not go back | 13 |
|
| 5 | do not [vb infin] back | 10 |
|
| 6 | does not [vb infin] back | 10 |
|
| 7 | do not smile back | 6 |
|
