| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] let it [vb infin] | 123 |
|
| 2 | [vb past] [not/n't] it [vb infin] | 31 |
|
| 3 | [vb past] [not/n't] let it | 15 |
|
| 4 | [vb past] [not/n't] let [vb infin] | 7 |
|
