| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | of [noun sg] [noun] [modal v] [verb] | 934 |
|
| 2 | level of [noun sg] [noun] [verb] | 69 |
|
| 3 | level of [noun] [modal v] [verb] | 59 |
|
| 4 | level of [noun sg] [modal v] [verb] | 50 |
|
| 5 | level of [noun sg] [noun] [modal v] | 22 |
|
