| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [pron] [adv] | 11810 |
|
| 2 | [pron] [adv] happen | 954 |
|
| 3 | [be] [adv] happen | 326 |
|
| 4 | [be] [pron] happen | 319 |
|
