| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | know if it [verb] [be] | 5 |
|
| 2 | know if it [verb] be | 5 |
|
| 3 | know if it [verb] [been] | 5 |
|
| 4 | know if it have [be] | 5 |
|
| 5 | know if it [verb] been | 5 |
|
