| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [pron] [is] not | 8119 |
|
| 2 | but [pron] [is] [adv] | 6735 |
|
| 3 | but [pron] [be] not | 6305 |
|
| 4 | [coord] [pron] [is] not | 3752 |
|
| 5 | but [pron] [is] not | 2291 |
|
