| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] it [is] [verb] [to] happen | 6 |
|
| 2 | it [is] [adv] [verb] [to] happen | 6 |
|
| 3 | it [is] [verb] [to] happen [adv] | 5 |
|
| 4 | it [is] [verb] [to] happen [adv] | 5 |
|
