| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | let [pron] [vb infin] | 12021 |
|
| 2 | must [pron] [vb infin] | 269 |
|
| 3 | must let [pron] | 44 |
|
| 4 | must let [vb infin] | 7 |
|
