| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [adv] occurred [prep] | 127 |
|
| 2 | it have [adv] [prep] | 58 |
|
| 3 | it have [adv] occurred | 55 |
|
| 4 | it have occurred [prep] | 40 |
|
