| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what difference did it [verb] | 5 |
|
| 2 | what difference [vb past] it make | 5 |
|
| 3 | what difference [vb past] it [verb] | 5 |
|
| 4 | what difference [vb past] it [verb] | 5 |
|
| 5 | what difference [vb past] it [verb] | 5 |
|
| 6 | what difference [vb past] it [vb infin] | 5 |
|
| 7 | what difference [vb past] it make | 5 |
|
