| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i [adv] [to-vb] | 508 |
|
| 2 | [adv] happen [to-vb] | 181 |
|
| 3 | i happen [to-vb] | 161 |
|
| 4 | i [adv] happen | 40 |
|
