| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] to let [pers pn] [vb infin] | 18 |
|
| 2 | used to let [pers pn] [vb infin] | 9 |
|
| 3 | used to let [pers pn] [vb infin] | 9 |
|
| 4 | ought to let [pers pn] [vb infin] | 8 |
|
| 5 | ought to let [pers pn] [vb infin] | 8 |
|
| 6 | [modal v] to let you [vb infin] | 6 |
|
| 7 | [modal v] to let [pers pn] know | 5 |
|
