| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but let [pers pn] not forget | 8 |
|
| 2 | but let [pers pn] [not/n't] forget | 8 |
|
| 3 | but let us [not/n't] forget | 8 |
|
| 4 | but let [pers pn] [not/n't] forget | 8 |
|
