| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [is] [that] | 674 |
|
| 2 | happen [is] [that] | 173 |
|
| 3 | happen [adv] [is] | 47 |
|
| 4 | happen [adv] [that] | 20 |
|
