| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] a [adj] and [not/n't] a | 14 |
|
| 2 | [is] a [adj] [conj] [not/n't] a | 10 |
|
| 3 | [is] a [adj] and [adv] a | 10 |
|
| 4 | [is] a [adj] and [not/n't] [art] | 7 |
|
| 5 | [is] a [adj] and [not/n't] [art] | 7 |
|
| 6 | [is] a [adj] and [not/n't] a | 7 |
|
| 7 | [is] [art] [adj] and [not/n't] a | 6 |
|
