| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | are [verb] [to-vb] [adj] [noun] | 1096 |
|
| 2 | are [vb pp] [to-vb] [adj] [noun] | 795 |
|
| 3 | be required [to-vb] [adj] [noun] | 293 |
|
| 4 | [be] required [to-vb] [adj] [noun] | 293 |
|
| 5 | are required [verb] [adj] [noun] | 108 |
|
| 6 | are require [to-vb] [adj] [noun] | 106 |
|
| 7 | [am/are] required [to-vb] [adj] [noun] | 106 |
|
