| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but do | 1906 |
|
| 2 | but did | 1276 |
|
| 3 | but does | 693 |
|
| 4 | but to do | 73 |
|
| 5 | but doing | 36 |
|
| 6 | but d' | 7 |
|
