| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and why [verb] they [verb] | 20 |
|
| 2 | and why [verb] they [verb] | 20 |
|
| 3 | and why [verb] they [vb infin] | 19 |
|
| 4 | and why do they [verb] | 19 |
|
| 5 | and why [vb base] they [verb] | 11 |
|
| 6 | and why do they [verb] | 10 |
|
| 7 | and why did they [verb] | 9 |
|
| 8 | and why [vb past] they [verb] | 9 |
|
