| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] have happened [prep] | 130 |
|
| 2 | [adj] have [adv] [prep] | 55 |
|
| 3 | have happened [adv] [prep] | 51 |
|
| 4 | [adj] have happened [adv] | 41 |
|
