| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how did they [verb] | 143 |
|
| 2 | how did they [verb] | 143 |
|
| 3 | how did they [vb infin] | 142 |
|
| 4 | how did they get | 32 |
|
| 5 | how did they get | 32 |
|
| 6 | how did they know | 17 |
|
| 7 | how did they know | 17 |
|
| 8 | how did they manage | 8 |
|
| 9 | how did they manage | 8 |
|
| 10 | how did they come | 6 |
|
| 11 | how did they come | 6 |
|
| 12 | how did they do | 6 |
|
| 13 | how did they keep | 5 |
|
| 14 | how did they do | 5 |
|
| 15 | how did they keep | 5 |
|
