| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] n't [verb] back | 10 |
|
| 2 | it [verb] n't [vb infin] back | 10 |
|
| 3 | it do n't [verb] back | 10 |
|
| 4 | it [vb past] n't [verb] back | 5 |
|
| 5 | it did n't [verb] back | 5 |
|
