| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [ex0] be a [noun] [noun] | 1997 |
|
| 2 | [pron] be a [noun pl] [noun] | 137 |
|
| 3 | [ex0] be [art] [noun pl] [noun] | 81 |
|
| 4 | [ex0] [be] a [noun pl] [noun] | 48 |
|
