| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [adv] [be] an [noun] | 198 |
|
| 2 | should [adv] [be] [art] [noun] | 73 |
|
| 3 | should [adv] [be] [art] [noun] | 73 |
|
| 4 | should [adv] [be] a [noun] | 52 |
|
| 5 | should [adv] [be] an [noun] | 19 |
|
