| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [not/n't] [conj] | 978 |
|
| 2 | [be] [not/n't] until | 437 |
|
| 3 | [is] [not/n't] [subord] | 420 |
|
| 4 | [is] [adv] until | 53 |
|
| 5 | [is] [not/n't] until | 44 |
|
