| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [ex0] [be] a [noun] [prep] | 13565 |
|
| 2 | [pron] [was/were] a [noun] [prep] | 9503 |
|
| 3 | [ex0] [was/were] [art] [noun] [prep] | 9214 |
|
| 4 | [ex0] [was/were] a [noun] [prep] | 5052 |
|
