| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [adv] [verb] how long | 38 |
|
| 2 | do [adv] [verb] how long | 37 |
|
| 3 | [vb base] [adv] [verb] how long | 32 |
|
| 4 | do [adv] [verb] how long | 29 |
|
| 5 | [modal v] [adv] [verb] how long | 6 |
|
| 6 | [vb mod] [adv] [verb] how long | 6 |
|
| 7 | [vb past] [adv] [verb] how long | 6 |
|
| 8 | did [adv] [verb] how long | 5 |
|
| 9 | could [adv] [verb] how long | 5 |
|
| 10 | could [adv] [verb] how long | 5 |
|
| 11 | [adv] [verb] how long [pron] | 35 |
|
| 12 | [adv] [verb] how long [pers pn] | 35 |
|
| 13 | [adv] [verb] how long it | 16 |
|
| 14 | [adv] [verb] how long it | 16 |
|
| 15 | [adv] [verb] how long [noun] | 6 |
|
| 16 | [adv] [verb] how long they | 5 |
|
| 17 | [adv] [verb] how long they | 5 |
|
