| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [adv] be a [noun] | 1270 |
|
| 2 | [modal v] [adv] be a [noun prp] | 31 |
|
| 3 | [modal v] [adv] be [art] [noun prp] | 26 |
|
| 4 | [modal v] [adv] [be] a [noun prp] | 17 |
|
