| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] vary from [noun sg] [prep] [noun] | 96 |
|
| 2 | [modal v] [verb] from [noun sg] [prep] time | 36 |
|
| 3 | [modal v] vary from [noun] [prep] time | 11 |
|
| 4 | [modal v] vary [prep] [noun sg] [prep] time | 11 |
|
