| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be a [noun sg] | 8540 |
|
| 2 | should be [art] [noun sg] | 1142 |
|
| 3 | should be a [noun] | 627 |
|
| 4 | should be a [noun sg] | 603 |
|
| 5 | should [be] a [noun sg] | 603 |
|
| 6 | should [be] a [noun sg] | 603 |
|
