| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [adv] [subord] | 1140 |
|
| 2 | it [adv] happened | 180 |
|
| 3 | it happened [subord] | 38 |
|
| 4 | [adv] happened [subord] | 32 |
|
