| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] must [be] [adj] [prep] [adj] | 13 |
|
| 2 | [noun pl] must be [adj] [prep] [adj] | 13 |
|
| 3 | [noun pl] must [be] [adj] to [adj] | 7 |
|
