| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be a [noun] [verb] [prep] [adj] | 336 |
|
| 2 | be [art] [noun] [to-vb] [prep] [adj] | 149 |
|
| 3 | [be] a [noun] [to-vb] [prep] [adj] | 61 |
|
