| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] [pron] [be] [adv] | 6830 |
|
| 2 | [pron] [be] [adv] happen | 193 |
|
| 3 | [vb base] [pron] [be] happen | 88 |
|
| 4 | [vb base] [pron] [adv] happen | 16 |
|
