| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [not/n't] [adv] | 2703 |
|
| 2 | is [not/n't] [adv] [to-vb] | 264 |
|
| 3 | it is [adv] [to-vb] | 96 |
|
| 4 | it is [not/n't] [to-vb] | 41 |
|
| 5 | it [not/n't] [adv] [to-vb] | 5 |
|
