| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not [verb] to let [pron] [verb] | 95 |
|
| 2 | not [verb] to let [pron] [vb infin] | 62 |
|
| 3 | [adv] [verb] to let [pron] know | 21 |
|
| 4 | not [verb] to let [pron] know | 14 |
|
| 5 | not [verb] [verb] [pron] know | 14 |
|
| 6 | not [verb] let [pron] know | 12 |
|
| 7 | not [verb] [to-vb] [pron] know | 12 |
|
