| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it could [verb] [adj] [noun] | 124 |
|
| 2 | it [modal v] happen [adj] [noun] | 10 |
|
| 3 | [pers pn] could happen [adj] [noun] | 5 |
|
| 4 | it could happen [adj] [noun] | 5 |
|
| 5 | [pron] could happen [adj] [noun] | 5 |
|
