| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [to-vb] [prep] the [noun] | 472 |
|
| 2 | is required [prep] the [noun] | 136 |
|
| 3 | is required [to-vb] the [noun] | 86 |
|
| 4 | required [to-vb] [prep] the [noun] | 84 |
|
| 5 | is required [to-vb] [prep] the | 21 |
|
| 6 | is required [to-vb] [prep] [noun] | 9 |
|
