| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | reason why [pers pn] do [adv] | 32 |
|
| 2 | reason why [pron] do [adv] | 32 |
|
| 3 | [noun] why they do [adv] | 11 |
|
| 4 | reason why they [verb] [adv] | 11 |
|
| 5 | reason why they do [adv] | 9 |
|
| 6 | [noun sg] why they do [adv] | 8 |
|
| 7 | reason [adv] they do [adv] | 6 |
|
| 8 | reason [Wh adv] they do [adv] | 6 |
|
| 9 | reason why they do [adv] | 6 |
|
| 10 | reason why they do [adv] | 6 |
|
