| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [be] [adj] | 5056 |
|
| 2 | must [be] [adj] | 3715 |
|
| 3 | must [vb infin] [be] | 3545 |
|
| 4 | must [vb infin] [adj] | 1071 |
|
