| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how often do [pron] [vb infin] | 79 |
|
| 2 | how often do [pers pn] [vb infin] | 78 |
|
| 3 | how [adv] do we [vb infin] | 30 |
|
| 4 | [adv] often do we [vb infin] | 10 |
|
| 5 | how often do we [vb infin] | 9 |
|
| 6 | [Wh adv] often do we [vb infin] | 9 |
|
| 7 | how often do we [vb infin] | 9 |
|
| 8 | how often [verb] we [vb infin] | 9 |
|
| 9 | how often do we [verb] | 9 |
|
