| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] why they do [adv] | 41 |
|
| 2 | understand why [pers pn] do [adv] | 28 |
|
| 3 | understand why [pron] do [adv] | 28 |
|
| 4 | understand [Wh adv] they do [adv] | 6 |
|
| 5 | understand why they [verb] [adv] | 6 |
|
| 6 | understand [adv] they do [adv] | 6 |
|
| 7 | understand why they do [adv] | 5 |
|
| 8 | understand why they do [adv] | 5 |
|
