| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it happen to be | 25 |
|
| 2 | [subord] it happens to be | 16 |
|
| 3 | if it happen to be | 13 |
|
| 4 | because it happen to be | 9 |
|
| 5 | [subord] it happened to be | 9 |
|
