| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] [vb -s] not [adv] happen | 7 |
|
| 2 | [adj] [vb -s] not [adv] happen | 7 |
|
| 3 | this [vb -s] not [adv] happen | 6 |
|
| 4 | this [vb -s] not [adv] happen | 6 |
|
