| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [adv] know if | 6 |
|
| 2 | it is [adv] [adv] [vb pp] if | 6 |
|
| 3 | it is not [adv] [verb] if | 5 |
|
| 4 | it is [adv] [adv] known if | 5 |
|
| 5 | it is not [adv] [verb] if | 5 |
|
| 6 | it is [not/n't] [adv] [verb] if | 5 |
|
| 7 | it is [adv] yet [verb] if | 5 |
|
