| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [modal v] occur at any [noun sg] | 9 |
|
| 2 | [noun] [modal v] occur at any [noun] | 9 |
|
| 3 | [noun] [modal v] occur at any time | 5 |
|
| 4 | [noun] [modal v] occur at any time | 5 |
|
