| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is often [verb] [conj] | 283 |
|
| 2 | is often [vb pp] [conj] | 280 |
|
| 3 | is [adv] forgotten [conj] | 19 |
|
| 4 | is [adv] forgotten [conj] | 17 |
|
| 5 | be often forgotten [conj] | 8 |
|
| 6 | [be] often forgotten [conj] | 8 |
|
| 7 | [is] often forgotten [conj] | 7 |
|
| 8 | is often forgotten [conj] | 6 |
|
| 9 | is often forget [conj] | 6 |
|
