| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] a [det] [noun] | 305 |
|
| 2 | [was/were] a [adj] [n mass] | 227 |
|
| 3 | [be] a [det] [n mass] | 48 |
|
| 4 | [was/were] [art] [det] [n mass] | 26 |
|
