| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb -s] [been] claimed that | 44 |
|
| 2 | it [vb -s] be claimed that | 44 |
|
| 3 | it [vb -s] been claimed that | 44 |
|
| 4 | it has [be] claimed that | 42 |
|
