| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] let [pers pn] [vb infin] | 895 |
|
| 2 | must let [pers pn] [vb infin] | 36 |
|
| 3 | must [not/n't] let [pers pn] | 20 |
|
