| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must also have [vb pp] [art] | 9 |
|
| 2 | must also [vb infin] [vb pp] [art] | 9 |
|
| 3 | must also [vb infin] [vb pp] the | 6 |
|
| 4 | must also [vb infin] [vb pp] the | 6 |
|
