| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [noun] are required to be | 9 |
|
| 2 | [adj] [noun] are required to be | 6 |
|
| 3 | [noun] are [adv] required to be | 5 |
|
| 4 | [noun] are required to be [verb] | 15 |
|
| 5 | [noun] are required to be [vb pp] | 15 |
|
