| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [not/n't] let [pron] [vb infin] [pron] | 138 |
|
| 2 | must [adv] let [pron] [vb infin] [pron] | 5 |
|
| 3 | must [not/n't] let [pron] [verb] [pron] | 5 |
|
| 4 | must [not/n't] [verb] [pron] [vb infin] [pron] | 5 |
|
