| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | we must not let [pron] [vb infin] | 5 |
|
| 2 | we must [adv] let [pron] [vb infin] | 5 |
|
| 3 | we must [not/n't] let [pron] [vb infin] | 5 |
|
