| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [be] [adj] for [adj] [noun sg] | 12 |
|
| 2 | must be [adj] for [adj] [noun sg] | 12 |
|
| 3 | must [be] [adj] for [det] [noun sg] | 6 |
|
| 4 | must [be] [adj] for [adj] [noun sg] | 6 |
|
