| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adv] a [noun] | 15693 |
|
| 2 | be [prep] a [noun] | 9866 |
|
| 3 | [prep] [adv] a [noun] | 3035 |
|
| 4 | be [prep] [adv] a | 305 |
|
| 5 | be [prep] [adv] [noun] | 283 |
|
