| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have [not/n't] changed | 27 |
|
| 2 | it has [not/n't] change | 22 |
|
| 3 | it have n't change | 21 |
|
| 4 | it have not change | 6 |
|
| 5 | it had [not/n't] change | 5 |
|
