| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | do [vb infin] a difference | 26 |
|
| 2 | do make a difference | 23 |
|
| 3 | does [vb infin] a difference | 12 |
|
| 4 | do [vb infin] a difference | 9 |
|
| 5 | did [vb infin] a difference | 5 |
|
