| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [adv] happen | 954 |
|
| 2 | nothing [adv] [verb] | 399 |
|
| 3 | [indef pn] [adv] happen | 76 |
|
| 4 | nothing [adv] happen | 38 |
|
