| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | let down | 148 |
|
| 2 | let out | 133 |
|
| 3 | let off | 44 |
|
| 4 | let up | 15 |
|
| 5 | let in | 11 |
|
| 6 | let on | 11 |
|
| 7 | let along | 9 |
|
