| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that does [adv] happen | 26 |
|
| 2 | that [vb -s] [adv] happen | 26 |
|
| 3 | that [vb -s] not happen | 25 |
|
| 4 | that [vb -s] [not/n't] happen | 25 |
|
| 5 | that [vb -s] n't happen | 15 |
|
| 6 | that [vb -s] not happen | 10 |
|
