| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have [adv] [verb] | 2059 |
|
| 2 | it have [adv] [vb pp] | 1884 |
|
| 3 | [pron] have [adv] happened | 197 |
|
| 4 | it have [adv] happened | 158 |
|
| 5 | it have [adv] happen | 111 |
|
| 6 | it [verb] [adv] happened | 111 |
|
