| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [am/are] required [to-vb] the [noun] | 72 |
|
| 2 | are require [to-vb] the [noun] | 71 |
|
| 3 | [am/are] require [to-vb] the [noun sg] | 49 |
|
| 4 | [am/are] require [to-vb] the [noun pl] | 20 |
|
