| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but it [be] not | 2875 |
|
| 2 | but it be not | 2875 |
|
| 3 | but it 's [adv] | 2041 |
|
| 4 | [conj] it 's not | 2007 |
|
| 5 | but it [is] not | 1777 |
|
| 6 | [coord] it 's not | 1211 |
|
| 7 | but [pron] 's not | 1045 |
|
| 8 | but it 's not | 782 |
|
