| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [noun] know when | 7 |
|
| 2 | let [noun] know when | 6 |
|
| 3 | [noun] [vb mod] know when | 5 |
|
| 4 | [noun] [modal v] know when | 5 |
|
| 5 | [noun] know when [pron] | 9 |
|
| 6 | [noun] know when [pers pn] | 6 |
|
