| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb past] it [vb mod] happen | 11 |
|
| 2 | [adv] [vb past] it [modal v] happen | 11 |
|
| 3 | [adv] [vb past] it would happen | 10 |
|
| 4 | [adv] [vb past] it would happen | 10 |
|
