| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [not/n't] [verb] to | 3131 |
|
| 2 | be [verb] back to | 1233 |
|
| 3 | [not/n't] [verb] back to | 181 |
|
| 4 | be [not/n't] [verb] back | 159 |
|
