| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] [adj] [noun pl] | 1147 |
|
| 2 | required [verb] [adj] [noun pl] | 167 |
|
| 3 | be required [verb] [adj] | 119 |
|
| 4 | be required [verb] [noun pl] | 38 |
|
