| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | are [adv] to [be] | 482 |
|
| 2 | are required to [be] | 34 |
|
| 3 | [adv] required to [be] | 20 |
|
| 4 | are [adv] required to | 12 |
|
