| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] a [noun] [noun] | 3457 |
|
| 2 | [was/were] n't a [noun] | 712 |
|
| 3 | n't a [noun] [noun] | 152 |
|
| 4 | [was/were] n't [noun] [noun] | 103 |
|
