| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it can [verb] [conj] | 125 |
|
| 2 | it can [vb infin] [conj] | 118 |
|
| 3 | it [vb mod] happen [conj] | 51 |
|
| 4 | it [modal v] happen [conj] | 51 |
|
| 5 | [pron] can happen [conj] | 44 |
|
| 6 | it can happen [conj] | 16 |
|
| 7 | it can happen [conj] | 16 |
|
