| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adv] required [verb] a [noun] | 19 |
|
| 2 | be [adv] require [to-vb] a [noun] | 19 |
|
| 3 | be [adv] require [verb] a [noun sg] | 19 |
|
| 4 | be [adv] require [verb] a [noun] | 12 |
|
| 5 | is [adv] require [verb] a [noun] | 9 |
|
| 6 | are [adv] require [verb] a [noun] | 8 |
|
| 7 | be not require [verb] a [noun] | 7 |
|
| 8 | be not require [verb] a [noun] | 7 |
|
| 9 | be [not/n't] require [verb] a [noun] | 7 |
|
