| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] changed [adv] over [art] past | 9 |
|
| 2 | have changed [adv] over [art] past | 9 |
|
| 3 | has changed [adv] over [art] past | 6 |
|
| 4 | [vb -s] changed [adv] over [art] past | 6 |
|
| 5 | changed [adv] over [art] past [adj] | 10 |
|
| 6 | changed [adv] over [art] past [num] | 7 |
|
