| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [vb pp] [conj] a [noun] | 213 |
|
| 2 | is [not/n't] [vb pp] [conj] [noun] | 51 |
|
| 3 | [not/n't] [vb pp] [conj] a [noun] | 18 |
|
| 4 | is [not/n't] [vb pp] a [noun] | 14 |
|
| 5 | is [not/n't] [vb pp] [conj] a | 13 |
|
