| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [prep] a [noun] [conj] | 746 |
|
| 2 | [be] [prep] a [noun] [conj] | 746 |
|
| 3 | are [prep] [art] [noun] [conj] | 343 |
|
| 4 | [am/are] [prep] a [noun] [conj] | 114 |
|
