| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] n't [adv] | 1917 |
|
| 2 | [is] [adv] [to-vb] | 1368 |
|
| 3 | n't [adv] [to-vb] | 111 |
|
| 4 | [is] n't [to-vb] | 33 |
|
