| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that do [not/n't] happen | 57 |
|
| 2 | that [verb] n't happen | 36 |
|
| 3 | that [vb past] [not/n't] happen | 28 |
|
| 4 | that did [not/n't] happen | 28 |
|
| 5 | that [vb -s] [not/n't] happen | 25 |
|
| 6 | that does [not/n't] happen | 25 |
|
| 7 | that [verb] not happen | 21 |
|
