| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [adv] happen that | 125 |
|
| 2 | [adv] happen that [noun] | 21 |
|
| 3 | it [adv] that [noun] | 9 |
|
| 4 | it happen that [noun] | 6 |
|
