| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb past] [verb] [adj] [noun] | 375 |
|
| 2 | [pron] [vb past] happen [adj] [noun] | 31 |
|
| 3 | it [verb] happen [adj] [noun] | 16 |
|
| 4 | it [vb past] happen [adj] [noun] | 10 |
|
| 5 | [pers pn] [vb past] happen [adj] [noun] | 10 |
|
