| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have [been] [verb] | 6114 |
|
| 2 | it [vb -s] [been] [verb] | 4373 |
|
| 3 | [vb -s] have [been] [verb] | 529 |
|
| 4 | it [vb -s] have [verb] | 193 |
|
| 5 | it [vb -s] have [been] | 116 |
|
