| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] not [conj] | 819 |
|
| 2 | it [be] [adv] until | 439 |
|
| 3 | it [be] [not/n't] until | 433 |
|
| 4 | it [be] not until | 433 |
|
| 5 | [pron] [be] not until | 284 |
|
