| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] must [be] use [prep] [adj] | 6 |
|
| 2 | [noun sg] must [be] use [prep] [adj] | 5 |
|
| 3 | must [be] use [prep] [adj] [noun] | 7 |
|
