| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | do [not/n't] happen to | 24 |
|
| 2 | do n't happen to | 18 |
|
| 3 | does [not/n't] happen to | 12 |
|
| 4 | did [not/n't] happen to | 10 |
|
| 5 | do not happen to | 7 |
|
