| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [noun pl] must be [verb] | 900 |
|
| 2 | [adj] [noun pl] must be [vb pp] | 875 |
|
| 3 | [adj] [noun pl] [vb mod] be used | 557 |
|
| 4 | [adj] [noun pl] [modal v] be used | 557 |
|
| 5 | [adj] [noun] must be used | 42 |
|
| 6 | [adj] [noun pl] must [be] used | 26 |
|
| 7 | [adj] [noun pl] must be used | 26 |
|
| 8 | [adj] [noun pl] must [be] used | 26 |
|
| 9 | [adj] [noun pl] must be used | 26 |
|
| 10 | [adj] [noun pl] must be use | 26 |
|
