| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must not let [pron] [vb infin] | 19 |
|
| 2 | must not let [pers pn] [vb infin] | 16 |
|
| 3 | must n't let [pron] [vb infin] | 15 |
|
| 4 | must not let they [vb infin] | 5 |
|
