| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] have happened [adv] [prep] | 10 |
|
| 2 | [adj] has happened [adv] [prep] | 8 |
|
| 3 | this have happened [adv] [prep] | 7 |
|
| 4 | this have happened [adv] [prep] | 7 |
|
