| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | used [to-vb] [noun] | 1113 |
|
| 2 | used [verb] [noun] | 1113 |
|
| 3 | [modal v] to know [noun] | 8 |
|
| 4 | used know [noun] | 6 |
|
