| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [conj] it [is] [adv] | 1994 |
|
| 2 | [verb] [conj] it [is] [not/n't] | 681 |
|
| 3 | [verb] [conj] it [is] not | 681 |
|
| 4 | [verb] [conj] it [be] n't | 193 |
|
| 5 | [verb] [conj] [pron] [is] n't | 93 |
|
