| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how do | 3500 |
|
| 2 | how did | 2109 |
|
| 3 | how does | 1063 |
|
| 4 | how to do | 529 |
|
| 5 | how d' | 121 |
|
| 6 | how do | 5 |
|
