| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is often [vb pp] that | 150 |
|
| 2 | it be often said that | 51 |
|
| 3 | it be often assumed that | 27 |
|
| 4 | it be often argued that | 18 |
|
| 5 | it be often claimed that | 12 |
|
| 6 | it be often suggested that | 9 |
|
| 7 | it was often [vb pp] that | 9 |
|
| 8 | it be often forgotten that | 7 |
|
| 9 | it be often thought that | 5 |
|
| 10 | it be often found that | 5 |
|
