| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not know [conj] it [is] [adv] | 35 |
|
| 2 | not [verb] if it [is] [adv] | 28 |
|
| 3 | not [vb infin] if it [is] [adv] | 27 |
|
| 4 | not know if [pron] [is] [adv] | 21 |
|
| 5 | not know if [pers pn] [is] [adv] | 20 |
|
| 6 | not know if it [be] [adv] | 16 |
|
| 7 | not know if it [is] [adv] | 15 |
|
| 8 | not know if it [is] [adv] | 15 |
|
| 9 | [adv] know if it [is] [adv] | 15 |
|
