| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] to [adj] [noun pl] | 669 |
|
| 2 | must be [vb pp] to [adj] | 32 |
|
| 3 | must be [vb pp] to [noun pl] | 24 |
|
| 4 | must be [vb pp] [adj] [noun pl] | 8 |
|
