| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be often [verb] that | 163 |
|
| 2 | it be often [vb pp] that | 163 |
|
| 3 | it be [adv] forgotten that | 11 |
|
| 4 | it be [adv] forgotten that | 11 |
|
| 5 | it be often forgotten that | 7 |
|
| 6 | it be often forgotten [conj] | 7 |
|
| 7 | it be often forgotten that | 7 |
|
| 8 | it [be] often forgotten that | 7 |
|
| 9 | it be often forgotten [that] | 7 |
|
| 10 | [pron] be often forgotten that | 7 |
|
| 11 | it be often forget that | 7 |
|
