| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] [not/n't] [be] forgotten [conj] | 45 |
|
| 2 | it [vb mod] [not/n't] [be] forgotten [conj] | 45 |
|
| 3 | it [modal v] [not/n't] be forgotten [conj] | 45 |
|
| 4 | it [modal v] not [be] forgotten [conj] | 45 |
|
| 5 | it [modal v] [not/n't] [be] forgotten [that] | 44 |
|
| 6 | it [modal v] [not/n't] [be] forgotten that | 44 |
|
| 7 | it [modal v] [not/n't] [be] forgotten that | 44 |
|
| 8 | it should [not/n't] [be] forgotten [conj] | 32 |
|
| 9 | it should [not/n't] [be] forgotten [conj] | 32 |
|
| 10 | it must [not/n't] [be] forgotten [conj] | 12 |
|
| 11 | it must [not/n't] [be] forgotten [conj] | 12 |
|
