| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [vb pp] [conj] a [noun] | 213 |
|
| 2 | is not [vb pp] [conj] [noun] | 48 |
|
| 3 | not [vb pp] [conj] a [noun] | 16 |
|
| 4 | is not [vb pp] [conj] a | 11 |
|
| 5 | is not [vb pp] a [noun] | 11 |
|
