| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] know how long | 111 |
|
| 2 | not know how long | 99 |
|
| 3 | [not/n't] know how long | 99 |
|
| 4 | n't know how long | 78 |
|
| 5 | [pron] know how long | 32 |
|
| 6 | not know how long | 21 |
|
| 7 | [noun] know how long | 20 |
|
| 8 | [pers pn] know how long | 15 |
|
| 9 | who know how long | 12 |
|
| 10 | who know how long | 12 |
|
| 11 | [adv] know how long | 12 |
|
| 12 | [Wh pn] know how long | 12 |
|
| 13 | [noun prp] know how long | 10 |
|
| 14 | you know how long | 10 |
|
| 15 | you know how long | 10 |
|
| 16 | [noun sg] know how long | 10 |
|
| 17 | god know how long | 8 |
|
| 18 | god know how long | 8 |
|
| 19 | goodness know how long | 6 |
|
| 20 | goodness know how long | 6 |
|
| 21 | [verb] know how long | 5 |
|
| 22 | [indef pn] know how long | 5 |
|
| 23 | know [adv] how long | 11 |
|
| 24 | know [adv] how long | 9 |
|
| 25 | know exactly how long | 5 |
|
| 26 | know exactly how long | 5 |
|
| 27 | know how long [pron] | 108 |
|
| 28 | know how long [pers pn] | 100 |
|
| 29 | know how long it | 34 |
|
| 30 | know how long it | 34 |
|
