| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | do [adv] happen | 496 |
|
| 2 | [verb] [not/n't] happen | 481 |
|
| 3 | [verb] not happen | 481 |
|
| 4 | [verb] n't happen | 288 |
|
| 5 | does [adv] happen | 213 |
|
| 6 | [vb -s] [adv] happen | 213 |
|
| 7 | [vb past] [adv] happen | 209 |
|
| 8 | did [adv] happen | 209 |
|
| 9 | [verb] not happen | 193 |
|
| 10 | do [adv] happen | 74 |
|
| 11 | [vb base] [adv] happen | 74 |
|
| 12 | [verb] [adv] happen | 16 |
|
