| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [not/n't] [adv] [conj] | 303 |
|
| 2 | is it [not/n't] [adv] | 71 |
|
| 3 | is it [adv] [conj] | 40 |
|
| 4 | it [not/n't] [adv] [conj] | 14 |
|
