| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] often [verb] that | 162 |
|
| 2 | [is] often [vb pp] that | 162 |
|
| 3 | [is] [adv] forgotten that | 11 |
|
| 4 | [is] [adv] forgotten that | 11 |
|
| 5 | [be] often forgotten that | 7 |
|
| 6 | [is] often forgotten that | 7 |
|
| 7 | [is] often forget that | 7 |
|
| 8 | [is] often forgotten [conj] | 7 |
|
