| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have not taken | 216 |
|
| 2 | had [not/n't] taken | 180 |
|
| 3 | have n't taken | 127 |
|
| 4 | have [not/n't] taken | 95 |
|
| 5 | has [not/n't] taken | 64 |
|
