| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] [noun] must be [prep] | 172 |
|
| 2 | [noun] [art] [noun] must be | 136 |
|
| 3 | [noun] [noun] must be [prep] | 65 |
|
| 4 | [noun] [art] [noun] be [prep] | 8 |
|
