| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it happened [det] | 6 |
|
| 2 | [conj] it happened [det] | 6 |
|
| 3 | it happened [prep] [det] | 16 |
|
| 4 | it happened [prep] [det] | 16 |
|
| 5 | it happened [adv] [det] | 5 |
|
| 6 | it happened in [det] | 5 |
|
| 7 | it happened in [det] | 5 |
|
| 8 | it happened [det] [noun] | 10 |
|
| 9 | it happened [det] [noun sg] | 9 |
|
