| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it so happen | 100 |
|
| 2 | [pers pn] so happen | 100 |
|
| 3 | [pron] so happen | 100 |
|
| 4 | it so happen | 100 |
|
| 5 | [pron] so happened | 55 |
|
| 6 | [pron] so happens | 45 |
|
