| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it has [verb] [prep] [pron] | 99 |
|
| 2 | it has [vb pp] [prep] [pron] | 82 |
|
| 3 | it have occurred [prep] [pron] | 24 |
|
| 4 | it [verb] occurred [prep] [pron] | 24 |
|
| 5 | [pers pn] has occurred [prep] [pron] | 5 |
|
| 6 | it has occur [prep] [pron] | 5 |
|
| 7 | it [vb -s] occurred [prep] [pron] | 5 |
|
| 8 | it has occurred [prep] [pron] | 5 |
|
| 9 | [pron] has occurred [prep] [pron] | 5 |
|
