| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how long do it [vb infin] [prep] | 8 |
|
| 2 | [adv] long do it [vb infin] [prep] | 8 |
|
| 3 | how long do it [vb infin] [prep] | 8 |
|
| 4 | [Wh adv] long do it [vb infin] [prep] | 8 |
|
| 5 | long do it [vb infin] [verb] [prep] | 6 |
|
| 6 | long do it [vb infin] [to-vb] [prep] | 6 |
|
