| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [vb pp] a [noun sg] | 21 |
|
| 2 | must [be] [vb pp] a [noun sg] | 21 |
|
| 3 | must [be] given a [noun sg] | 12 |
|
| 4 | must [be] [vb pp] a chance | 5 |
|
