| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [adv] occur [prep] | 165 |
|
| 2 | have [adv] occur [prep] | 127 |
|
| 3 | it have [adv] [prep] | 58 |
|
| 4 | it have [adv] occur | 55 |
|
| 5 | it have occur [prep] | 40 |
|
