| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] let us [vb infin] | 59 |
|
| 2 | [not/n't] let us [vb infin] | 52 |
|
| 3 | [modal v] [not/n't] let [vb infin] | 47 |
|
| 4 | [modal v] [not/n't] let us | 37 |
|
