| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have [been] [verb] | 6114 |
|
| 2 | have [been] [verb] a | 1929 |
|
| 3 | it have [verb] a | 1211 |
|
| 4 | it have [been] a | 1181 |
|
