| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [indef pn] [verb] at [det] | 71 |
|
| 2 | [pron] happen at [det] | 27 |
|
| 3 | [indef pn] happen [prep] [det] | 18 |
|
| 4 | [indef pn] happen [prep] [det] | 18 |
|
| 5 | [indef pn] happen at [adj] | 9 |
|
| 6 | [indef pn] happen at [det] | 6 |
|
