| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but it be not a | 193 |
|
| 2 | but it [be] not a | 157 |
|
| 3 | but it [is] not a | 147 |
|
| 4 | but it 's not a | 76 |
|
| 5 | but it is not a | 71 |
|
| 6 | but it [was/were] not a | 46 |
|
| 7 | but it was not a | 46 |
|
| 8 | but it [be] not an | 36 |
|
