| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] happen to [be] | 565 |
|
| 2 | [pron] [adv] to [be] | 376 |
|
| 3 | [adv] happen to [be] | 189 |
|
| 4 | [pron] [adv] happen to | 158 |
|
