| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it must be [art] [noun] | 206 |
|
| 2 | it must be [art] [noun] | 206 |
|
| 3 | it must be [art] [noun] | 206 |
|
| 4 | it must be [art] [noun sg] | 194 |
|
| 5 | it must be a [noun] | 122 |
|
| 6 | it must be a [noun] | 107 |
|
| 7 | it must be the [noun] | 83 |
|
| 8 | it must be the [noun] | 83 |
|
| 9 | it must be an [noun] | 15 |
|
| 10 | it must be [art] case | 11 |
|
| 11 | it must be [art] case | 11 |
|
| 12 | it must be [art] [noun pl] | 7 |
|
| 13 | it must be [art] matter | 7 |
|
| 14 | it must be [art] matter | 7 |
|
| 15 | it must be [art] mistake | 6 |
|
| 16 | it must be [art] mistake | 6 |
|
| 17 | it must be [art] bit | 5 |
|
| 18 | it must be [art] bit | 5 |
|
