| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] a [noun] [prep] [noun] | 20648 |
|
| 2 | [am/are] [art] [noun] [prep] [noun] | 2950 |
|
| 3 | [am/are] a [noun] [prep] [noun] | 1567 |
|
