| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [pron] [adv] | 5349 |
|
| 2 | [pron] [adv] happen | 954 |
|
| 3 | [is] [pron] happen | 280 |
|
| 4 | [is] [adv] happen | 178 |
|
