| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] been claimed that [adj] | 8 |
|
| 2 | it has been claimed that [adj] | 8 |
|
| 3 | it have been claimed that [adj] | 8 |
|
| 4 | it [vb -s] been claimed that [adj] | 8 |
|
