| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what you must [vb infin] [be] [verb] | 9 |
|
| 2 | what you must do [be] [verb] | 9 |
|
| 3 | what you must [verb] [be] [verb] | 9 |
|
| 4 | what you must do [be] [verb] | 9 |
|
