| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [indef pn] [conj] a [noun] | 9 |
|
| 2 | [is] [indef pn] [conj] [not/n't] a | 5 |
|
| 3 | [indef pn] [conj] [not/n't] a [noun] | 5 |
|
