| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be a [noun] | 116941 |
|
| 2 | [Wh det] a [noun] | 4676 |
|
| 3 | [Wh det] be a | 3397 |
|
| 4 | [Wh det] be [noun] | 2587 |
|
