| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but can be | 165 |
|
| 2 | but may be | 148 |
|
| 3 | but will be | 124 |
|
| 4 | but would be | 101 |
|
| 5 | but should be | 90 |
|
| 6 | but must be | 72 |
|
| 7 | but could be | 71 |
|
| 8 | but might be | 14 |
|
