| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [not/n't] [be] [verb] | 2741 |
|
| 2 | should [not/n't] [be] [vb pp] | 2510 |
|
| 3 | [modal v] [not/n't] [be] forgotten | 109 |
|
| 4 | should [adv] [be] forgotten | 63 |
|
| 5 | should [not/n't] [be] forget | 52 |
|
