| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | range of [noun] [verb] | 822 |
|
| 2 | [noun] of [noun] required | 519 |
|
| 3 | range of [noun] [vb pp] | 334 |
|
| 4 | range of [noun] require | 16 |
|
| 5 | range [prep] [noun] required | 16 |
|
