| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [not/n't] changed | 426 |
|
| 2 | have not change | 216 |
|
| 3 | have n't change | 210 |
|
| 4 | has [not/n't] change | 168 |
|
| 5 | have [not/n't] change | 134 |
|
| 6 | had [not/n't] change | 120 |
|
