| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [vb pp] [art] [adj] [noun sg] | 41 |
|
| 2 | must be [vb pp] a [adj] [noun sg] | 22 |
|
| 3 | must be [vb pp] the [adj] [noun sg] | 17 |
|
| 4 | must be given [art] [adj] [noun sg] | 9 |
|
