| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is not [vb pp] [conj] | 510 |
|
| 2 | is [vb pp] [conj] [be] | 250 |
|
| 3 | not [vb pp] [conj] [be] | 76 |
|
| 4 | is not [vb pp] [be] | 15 |
|
