| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they must be [art] [noun] | 10 |
|
| 2 | they must be [art] [noun] | 10 |
|
| 3 | they must be the [noun] | 7 |
|
| 4 | they must be the [noun] | 7 |
|
| 5 | they must be [art] [noun pl] | 5 |
|
